Pub Date : 2023-07-13eCollection Date: 2023-01-01DOI: 10.12688/gatesopenres.14768.1
Stephanie Perniciaro, Dominic Cooper-Wooton, Maria Knoll, Daniel Weinberger
The Worldwide Index of Serotype Specific Pneumococcal Antibody Responses (WISSPAR; https://wisspar.com), is a centralized, online platform housing data on immunogenicity from clinical trials of pneumococcal vaccines. The data on WISSPAR are primarily curated from outcomes tables from clinical trials and are made available in a searchable format that can be readily used for downstream analyses. The WISSPAR database includes trials covering numerous vaccine products, manufacturers, dosing schedules, age groups, immunocompromised groups, and geographic regions. Customizable data visualization tools are embedded within the site, or the data can be exported for further analyses. Users can also browse summary information about the clinical trials and their results. WISSPAR provides a platform for analysts and policy makers to efficiently gather, compare, and collate clinical trial data about pneumococcal vaccines.
{"title":"Worldwide Index of Serotype-Specific Pneumococcal Antibody Responses (WISSPAR): A curated database of clinical trial data.","authors":"Stephanie Perniciaro, Dominic Cooper-Wooton, Maria Knoll, Daniel Weinberger","doi":"10.12688/gatesopenres.14768.1","DOIUrl":"10.12688/gatesopenres.14768.1","url":null,"abstract":"<p><p>The Worldwide Index of Serotype Specific Pneumococcal Antibody Responses (WISSPAR; https://wisspar.com), is a centralized, online platform housing data on immunogenicity from clinical trials of pneumococcal vaccines. The data on WISSPAR are primarily curated from outcomes tables from clinical trials and are made available in a searchable format that can be readily used for downstream analyses. The WISSPAR database includes trials covering numerous vaccine products, manufacturers, dosing schedules, age groups, immunocompromised groups, and geographic regions. Customizable data visualization tools are embedded within the site, or the data can be exported for further analyses. Users can also browse summary information about the clinical trials and their results. WISSPAR provides a platform for analysts and policy makers to efficiently gather, compare, and collate clinical trial data about pneumococcal vaccines.</p>","PeriodicalId":12593,"journal":{"name":"Gates Open Research","volume":"7 ","pages":"109"},"PeriodicalIF":0.0,"publicationDate":"2023-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10409981/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10387208","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-07-04eCollection Date: 2023-01-01DOI: 10.12688/gatesopenres.14112.1
Robert L Goldenberg, Jaume Ordi, Dianna M Blau, Natalia Rakislova, Vardendra Kulkarni, Najia Karim Ghanchi, Sarah Saleem, Shivaprasad S Goudar, Norman Goco, Christina Paganelli, Elizabeth M McClure
Stillbirth, one of the most common adverse pregnancy outcomes, is especially prevalent in low and middle-income countries (LMICs). Understanding the causes of stillbirth is crucial to developing effective interventions. In this commentary, investigators working across several LMICs discuss the most useful investigations to determine causes of stillbirths in LMICs. Useful data were defined as 1) feasible to obtain accurately and 2) informative to determine or help eliminate a cause of death. Recently, new tools for LMIC settings to determine cause of death in stillbirths, including minimally invasive tissue sampling (MITS) - a method using needle biopsies to obtain internal organ tissue from deceased fetuses for histology and pathogen identification in those tissues have become available. While placental histology has been available for some time, the development of the Amsterdam Criteria in 2016 has provided a useful framework to categorize placental lesions. The authors recommend focusing on the clinical history, the placental evaluation, the external examination of the fetus, and, when available, fetal tissue obtained by MITS, especially of the lung (focused on histology and microbiology) and brain/cerebral spinal fluid (CSF) and fetal blood (focused on microbiological analysis). The authors recognize that this approach may not identify some causes of stillbirth, including some genetic abnormalities and internal organ anomalies, but believe it will identify the most common causes of stillbirth, and most of the preventable causes.
{"title":"An approach to determining the most common causes of stillbirth in low and middle-income countries: A commentary.","authors":"Robert L Goldenberg, Jaume Ordi, Dianna M Blau, Natalia Rakislova, Vardendra Kulkarni, Najia Karim Ghanchi, Sarah Saleem, Shivaprasad S Goudar, Norman Goco, Christina Paganelli, Elizabeth M McClure","doi":"10.12688/gatesopenres.14112.1","DOIUrl":"10.12688/gatesopenres.14112.1","url":null,"abstract":"<p><p>Stillbirth, one of the most common adverse pregnancy outcomes, is especially prevalent in low and middle-income countries (LMICs). Understanding the causes of stillbirth is crucial to developing effective interventions. In this commentary, investigators working across several LMICs discuss the most useful investigations to determine causes of stillbirths in LMICs. Useful data were defined as 1) feasible to obtain accurately and 2) informative to determine or help eliminate a cause of death. Recently, new tools for LMIC settings to determine cause of death in stillbirths, including minimally invasive tissue sampling (MITS) - a method using needle biopsies to obtain internal organ tissue from deceased fetuses for histology and pathogen identification in those tissues have become available. While placental histology has been available for some time, the development of the Amsterdam Criteria in 2016 has provided a useful framework to categorize placental lesions. The authors recommend focusing on the clinical history, the placental evaluation, the external examination of the fetus, and, when available, fetal tissue obtained by MITS, especially of the lung (focused on histology and microbiology) and brain/cerebral spinal fluid (CSF) and fetal blood (focused on microbiological analysis). The authors recognize that this approach may not identify some causes of stillbirth, including some genetic abnormalities and internal organ anomalies, but believe it will identify the most common causes of stillbirth, and most of the preventable causes.</p>","PeriodicalId":12593,"journal":{"name":"Gates Open Research","volume":"7 ","pages":"102"},"PeriodicalIF":0.0,"publicationDate":"2023-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10547115/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41116923","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-07-04DOI: 10.12688/gatesopenres.14490.1
Jennifer R. Washabaugh, S. Moore, A. Doel, Saikou Drammeh, K. Ong, D. Dunger, A. Prentice, R. Bernstein
Background: Although breastfeeding is common in The Gambia, high rates of undernutrition in children under five highlight the importance of understanding drivers of particular feeding patterns in this environment, especially early introduction of non-breast milk foods (NBMFs). The country’s marked seasonality, which is associated with annual food insecurity and heavy maternal workload, may influence breastfeeding patterns; however, longitudinal assessments of infant diet in relationship to such factors are limited. We aimed to characterize infant breastfeeding patterns and timing of introduction of local complementary foods in a rural Gambian population across the first twelve months of life. Potential environmental and sociodemographic predictors of exclusive breastfeeding (EBF) duration were explored in order to identify factors that may influence infant feeding decisions in this population. Methods: Data from dietary questionnaires (administered every ten days until 12 months of age) collected as a part of the Hormonal and Epigenetic Regulators of Growth study (2013-2018) were used to calculate EBF duration in a subsample of 194 mother-infant pairs. Socioeconomic questionnaires and Principal Component Analysis were used to calculate household sociodemographic position (SEP). Multiple linear regression analyses were used to investigate potential predictors of EBF duration, including seasonality, SEP, and maternal and infant factors. Results: Mean age at introduction of food or liquid other than maternal milk was five months (±1.5). At twelve months, 98.7% of infants continue to receive some maternal milk. Being born in May significantly predicted shorter EBF duration by -1.68 months (95% CIs: -2.52, -0.84mo; P<.0001). SEP, maternal parity, and infant sex were non-significant predictors of EBF duration. Conclusions: Maternal milk is a vital component of infant diet across the first twelve months of life in this population. Earlier introduction of NBMFs coincides with the annual period where maternal agricultural workload intensifies in this region, though additional investigation is warranted.
{"title":"Patterns and determinants of breastfeeding and complementary feeding practices over the first year of life in a rural Gambian population","authors":"Jennifer R. Washabaugh, S. Moore, A. Doel, Saikou Drammeh, K. Ong, D. Dunger, A. Prentice, R. Bernstein","doi":"10.12688/gatesopenres.14490.1","DOIUrl":"https://doi.org/10.12688/gatesopenres.14490.1","url":null,"abstract":"Background: Although breastfeeding is common in The Gambia, high rates of undernutrition in children under five highlight the importance of understanding drivers of particular feeding patterns in this environment, especially early introduction of non-breast milk foods (NBMFs). The country’s marked seasonality, which is associated with annual food insecurity and heavy maternal workload, may influence breastfeeding patterns; however, longitudinal assessments of infant diet in relationship to such factors are limited. We aimed to characterize infant breastfeeding patterns and timing of introduction of local complementary foods in a rural Gambian population across the first twelve months of life. Potential environmental and sociodemographic predictors of exclusive breastfeeding (EBF) duration were explored in order to identify factors that may influence infant feeding decisions in this population. Methods: Data from dietary questionnaires (administered every ten days until 12 months of age) collected as a part of the Hormonal and Epigenetic Regulators of Growth study (2013-2018) were used to calculate EBF duration in a subsample of 194 mother-infant pairs. Socioeconomic questionnaires and Principal Component Analysis were used to calculate household sociodemographic position (SEP). Multiple linear regression analyses were used to investigate potential predictors of EBF duration, including seasonality, SEP, and maternal and infant factors. Results: Mean age at introduction of food or liquid other than maternal milk was five months (±1.5). At twelve months, 98.7% of infants continue to receive some maternal milk. Being born in May significantly predicted shorter EBF duration by -1.68 months (95% CIs: -2.52, -0.84mo; P<.0001). SEP, maternal parity, and infant sex were non-significant predictors of EBF duration. Conclusions: Maternal milk is a vital component of infant diet across the first twelve months of life in this population. Earlier introduction of NBMFs coincides with the annual period where maternal agricultural workload intensifies in this region, though additional investigation is warranted.","PeriodicalId":12593,"journal":{"name":"Gates Open Research","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43639657","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-07-04DOI: 10.12688/gatesopenres.14512.1
Gadise Bekele, D. Berhanu, Konjit Wolde, Dedefo Teshite, Walelegn Worku, A. Hyre, L. Noguchi, A. Worku
Background: Postnatal care is a critical intervention to reduce newborn and maternal mortality in high-mortality settings. However, it is underutilized in many countries. Family-led postnatal care (FPNC) is an innovative postnatal care service delivery model that leverages self-care principles to address key barriers identified in the Ethiopian context, including women’s preference to stay home in the first week after delivery and receive support from trusted family members. Utilizing an improved discharge process, coupled with user-friendly monitoring devices made available as a home care kit kept with preferred community custodians, this self-care model for postnatal care will be evaluated as a potential solution to very low coverage of postnatal care in the first week of life. Methods: The study will use mixed sequential methods: quantitative pre-intervention and post-intervention survey and phenomenological qualitative study. Four health centers in Ada Districtof Oromia, Ethiopia will be purposively selected. A pre-intervention survey will measure coverage and content of postnatal checks and care-seeking behavior. Health centers will then implement family led postnatal care. Once FPNC is initiated, post-intervention quantitative data will be collected. Approximately 218 postnatal women are to be included in the quantitative survey. Qualitative interviews with approximately 20 mothers, 20 partners, 20 families, eight health managers, 12 postnatal discharge counselors, 20 health extension workers, and eight home care kit custodians will be conducted. A quantitative measurement of sustainability six months after the endline will also be assessed. Conclusions: Optimally, the study will contribute evidence to inform decision makers locally and globally on whether FPNC is a feasible and acceptable service delivery model for postnatal care, and whether it improves women’s empowerment and/or increases men’s support and connection to women and newborns in the early postnatal period.
{"title":"A multi-site, non-randomized study of the feasibility and acceptability of a family-led postnatal care model in the Ada District, Ethiopia","authors":"Gadise Bekele, D. Berhanu, Konjit Wolde, Dedefo Teshite, Walelegn Worku, A. Hyre, L. Noguchi, A. Worku","doi":"10.12688/gatesopenres.14512.1","DOIUrl":"https://doi.org/10.12688/gatesopenres.14512.1","url":null,"abstract":"Background: Postnatal care is a critical intervention to reduce newborn and maternal mortality in high-mortality settings. However, it is underutilized in many countries. Family-led postnatal care (FPNC) is an innovative postnatal care service delivery model that leverages self-care principles to address key barriers identified in the Ethiopian context, including women’s preference to stay home in the first week after delivery and receive support from trusted family members. Utilizing an improved discharge process, coupled with user-friendly monitoring devices made available as a home care kit kept with preferred community custodians, this self-care model for postnatal care will be evaluated as a potential solution to very low coverage of postnatal care in the first week of life. Methods: The study will use mixed sequential methods: quantitative pre-intervention and post-intervention survey and phenomenological qualitative study. Four health centers in Ada Districtof Oromia, Ethiopia will be purposively selected. A pre-intervention survey will measure coverage and content of postnatal checks and care-seeking behavior. Health centers will then implement family led postnatal care. Once FPNC is initiated, post-intervention quantitative data will be collected. Approximately 218 postnatal women are to be included in the quantitative survey. Qualitative interviews with approximately 20 mothers, 20 partners, 20 families, eight health managers, 12 postnatal discharge counselors, 20 health extension workers, and eight home care kit custodians will be conducted. A quantitative measurement of sustainability six months after the endline will also be assessed. Conclusions: Optimally, the study will contribute evidence to inform decision makers locally and globally on whether FPNC is a feasible and acceptable service delivery model for postnatal care, and whether it improves women’s empowerment and/or increases men’s support and connection to women and newborns in the early postnatal period.","PeriodicalId":12593,"journal":{"name":"Gates Open Research","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49331312","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Background: Launched in 2014, Indonesia’s national health insurance system (JKN) aimed to provide universal health coverage, including contraceptive services, to its population. We aim to evaluate the contribution of JKN to the overall spending for the family planning program in Indonesia. Methods: Data from the Indonesian Demographic Health Survey, Survey on Financial Flows for Family Planning, Indonesia Motion Tracker Matrix, World Population Prospect, and Indonesian ministries’ budget accountability reports were entered into the CastCost Contraceptive Projection Tool to define budgetary allocation and spending for the family planning program at the national level in 2019. Results: Indonesia’s family planning program in 2019 was financed mostly by the national budget (64.0%) and out-of-pocket payments (34.6%). There were three main ministries responsible for family planning financing: the National Population and Family Planning Board (BKKBN) (35.8%), the Ministry of Finance (26.2%), and the Ministry of Health (2.0%). Overall, JKN contributed less than 0.4% of the funding for family planning services in Indonesia in 2019. The majority of family planning spending was by public facilities (57.3%) as opposed to private facilities (28.6%). Conclusion: JKN’s contribution to funding Indonesia’s family planning programs in 2019 was low and highlights a huge opportunity to expand these contributions. A coordinated effort should be conducted to identify possible opportunities to realign BKKBN and JKN roles in the family planning programs and lift barriers to accessing family planning services in public and private facilities. This includes a concerted effort to improve integration of private family planning providers into the JKN program.
{"title":"National health insurance contribution to family planning program funding in Indonesia: A fund flow analysis","authors":"Amirah Ellyza Wahdi, Edward Sutanto, Althaf Setyawan, Yufan Putri Astrini, Nadhila Adani, Halimah Mardani, Nirwan Maulana, Anooj Pattnaik, Trihono Trihono, S. Wilopo","doi":"10.12688/gatesopenres.14642.1","DOIUrl":"https://doi.org/10.12688/gatesopenres.14642.1","url":null,"abstract":"Background: Launched in 2014, Indonesia’s national health insurance system (JKN) aimed to provide universal health coverage, including contraceptive services, to its population. We aim to evaluate the contribution of JKN to the overall spending for the family planning program in Indonesia. Methods: Data from the Indonesian Demographic Health Survey, Survey on Financial Flows for Family Planning, Indonesia Motion Tracker Matrix, World Population Prospect, and Indonesian ministries’ budget accountability reports were entered into the CastCost Contraceptive Projection Tool to define budgetary allocation and spending for the family planning program at the national level in 2019. Results: Indonesia’s family planning program in 2019 was financed mostly by the national budget (64.0%) and out-of-pocket payments (34.6%). There were three main ministries responsible for family planning financing: the National Population and Family Planning Board (BKKBN) (35.8%), the Ministry of Finance (26.2%), and the Ministry of Health (2.0%). Overall, JKN contributed less than 0.4% of the funding for family planning services in Indonesia in 2019. The majority of family planning spending was by public facilities (57.3%) as opposed to private facilities (28.6%). Conclusion: JKN’s contribution to funding Indonesia’s family planning programs in 2019 was low and highlights a huge opportunity to expand these contributions. A coordinated effort should be conducted to identify possible opportunities to realign BKKBN and JKN roles in the family planning programs and lift barriers to accessing family planning services in public and private facilities. This includes a concerted effort to improve integration of private family planning providers into the JKN program.","PeriodicalId":12593,"journal":{"name":"Gates Open Research","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41492908","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-07-04eCollection Date: 2023-01-01DOI: 10.12688/gatesopenres.14724.1
Meghan Cutherell, Mary Phillips, Carrie Ellett, Emnet Woubishet, Joy Otsanya Ede, Akinjide Adesina, Arnold Kabahaula, Alex Nana-Sinkam, Abednego Musau, Katherine Nichol
In 2021, the Adolescents 360 (A360) project pursued a human-centered design (HCD) process to layer complementary economic empowerment components on top of its existing sexual and reproductive health (SRH) interventions targeting adolescent girls aged 15 to 19. Given the volume of evidence informing successful approaches for improving economic and empowerment outcomes for adolescents, we pursued an intentionally evidence-informed and gender-intentional design process, while trying to also respond directly to user insights. In this open letter, we share how we utilized and validated the evidence-base while applying the core tenets of HCD (empathy and user insights) to design holistic, layered programming for girls. We describe three overarching categories which depict how we used the existing evidence and new user insights to strengthen our design process. Often the evidence base allowed us to expedite finding a solution that worked for our users. However, at times there was a disconnect between what we knew worked in the evidence base and what our users said they wanted. New insights also allowed us to build a greater understanding of our users' lived experiences where there were existing evidence gaps. We were aided by the engagement of a technical partner, BRAC, who synthesized evidence for our design teams and functioned as an 'on demand' support mechanism as questions and challenges arose. Yet, the volume of information to absorb almost guaranteed that we would miss out on the opportunity to apply certain evidence-based practices. We encourage researchers to consider how to make evidence more easily digestible to practitioners and for the whole community of practice to work together to identify what questions need to be asked to effectively operationalize evidence in a local context.
{"title":"Balancing evidence-informed and user-responsive design: Experience with human-centered design to generate layered economic empowerment and SRH programming in Tanzania, Ethiopia, and Nigeria.","authors":"Meghan Cutherell, Mary Phillips, Carrie Ellett, Emnet Woubishet, Joy Otsanya Ede, Akinjide Adesina, Arnold Kabahaula, Alex Nana-Sinkam, Abednego Musau, Katherine Nichol","doi":"10.12688/gatesopenres.14724.1","DOIUrl":"10.12688/gatesopenres.14724.1","url":null,"abstract":"<p><p>In 2021, the Adolescents 360 (A360) project pursued a human-centered design (HCD) process to layer complementary economic empowerment components on top of its existing sexual and reproductive health (SRH) interventions targeting adolescent girls aged 15 to 19. Given the volume of evidence informing successful approaches for improving economic and empowerment outcomes for adolescents, we pursued an intentionally evidence-informed and gender-intentional design process, while trying to also respond directly to user insights. In this open letter, we share how we utilized and validated the evidence-base while applying the core tenets of HCD (empathy and user insights) to design holistic, layered programming for girls. We describe three overarching categories which depict how we used the existing evidence and new user insights to strengthen our design process. Often the evidence base allowed us to expedite finding a solution that worked for our users. However, at times there was a disconnect between what we knew worked in the evidence base and what our users said they wanted. New insights also allowed us to build a greater understanding of our users' lived experiences where there were existing evidence gaps. We were aided by the engagement of a technical partner, BRAC, who synthesized evidence for our design teams and functioned as an 'on demand' support mechanism as questions and challenges arose. Yet, the volume of information to absorb almost guaranteed that we would miss out on the opportunity to apply certain evidence-based practices. We encourage researchers to consider how to make evidence more easily digestible to practitioners and for the whole community of practice to work together to identify what questions need to be asked to effectively operationalize evidence in a local context.</p>","PeriodicalId":12593,"journal":{"name":"Gates Open Research","volume":"7 ","pages":"106"},"PeriodicalIF":0.0,"publicationDate":"2023-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10547119/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41122696","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-07-04DOI: 10.12688/gatesopenres.14684.1
P. Munywoki, G. Bigogo, Carolyne Nasimiyu, Alice Ouma, George Aol, Clifford O. Oduor, Samuel Rono, Joshua Auko, G. Agogo, R. Njoroge, Dismas Oketch, D. Odhiambo,, Victor W. Odeyo, Gilbert K. Kikwai, C. Onyango, B. Juma, E. Hunsperger, Shirley Lidechi, C. Ochieng, Terrence Q. Lo, P. Munyua, A. Herman-Roloff
Background: SARS-CoV-2 has extensively spread in cities and rural communities, and studies are needed to quantify exposure in the population. We report seroprevalence of SARS-CoV-2 in two well-characterized populations in Kenya at two time points. These data inform the design and delivery of public health mitigation measures. Methods: Leveraging on existing population based infectious disease surveillance (PBIDS) in two demographically diverse settings, a rural site in western Kenya in Asembo, Siaya County, and an urban informal settlement in Kibera, Nairobi County, we set up a longitudinal cohort of randomly selected households with serial sampling of all consenting household members in March and June 2021. Both sites included 1,794 and 1,638 participants in March and June 2021, respectively. Individual seroprevalence of SARS-CoV-2 antibodies was expressed as a percentage of the seropositive among the individuals tested, accounting for household clustering and weighted by the PBIDS age and sex distribution. Results: Overall weighted individual seroprevalence increased from 56.2% (95%CI: 52.1, 60.2%) in March 2021 to 63.9% (95%CI: 59.5, 68.0%) in June 2021 in Kibera. For Asembo, the seroprevalence almost doubled from 26.0% (95%CI: 22.4, 30.0%) in March 2021 to 48.7% (95%CI: 44.3, 53.2%) in July 2021. Seroprevalence was highly heterogeneous by age and geography in these populations—higher seroprevalence was observed in the urban informal settlement (compared to the rural setting), and children aged <10 years had the lowest seroprevalence in both sites. Only 1.2% and 1.6% of the study participants reported receipt of at least one dose of the COVID-19 vaccine by the second round of serosurvey—none by the first round. Conclusions: In these two populations, SARS-CoV-2 seroprevalence increased rapidly in the first 16 months of the COVID-19 pandemic in Kenya. It is important to prioritize additional mitigation measures, such as vaccine distribution, in crowded and low socioeconomic settings.
{"title":"Heterogenous transmission and seroprevalence of SARS-CoV-2 in two demographically diverse populations with low vaccination uptake in Kenya, March and June 2021","authors":"P. Munywoki, G. Bigogo, Carolyne Nasimiyu, Alice Ouma, George Aol, Clifford O. Oduor, Samuel Rono, Joshua Auko, G. Agogo, R. Njoroge, Dismas Oketch, D. Odhiambo,, Victor W. Odeyo, Gilbert K. Kikwai, C. Onyango, B. Juma, E. Hunsperger, Shirley Lidechi, C. Ochieng, Terrence Q. Lo, P. Munyua, A. Herman-Roloff","doi":"10.12688/gatesopenres.14684.1","DOIUrl":"https://doi.org/10.12688/gatesopenres.14684.1","url":null,"abstract":"Background: SARS-CoV-2 has extensively spread in cities and rural communities, and studies are needed to quantify exposure in the population. We report seroprevalence of SARS-CoV-2 in two well-characterized populations in Kenya at two time points. These data inform the design and delivery of public health mitigation measures. Methods: Leveraging on existing population based infectious disease surveillance (PBIDS) in two demographically diverse settings, a rural site in western Kenya in Asembo, Siaya County, and an urban informal settlement in Kibera, Nairobi County, we set up a longitudinal cohort of randomly selected households with serial sampling of all consenting household members in March and June 2021. Both sites included 1,794 and 1,638 participants in March and June 2021, respectively. Individual seroprevalence of SARS-CoV-2 antibodies was expressed as a percentage of the seropositive among the individuals tested, accounting for household clustering and weighted by the PBIDS age and sex distribution. Results: Overall weighted individual seroprevalence increased from 56.2% (95%CI: 52.1, 60.2%) in March 2021 to 63.9% (95%CI: 59.5, 68.0%) in June 2021 in Kibera. For Asembo, the seroprevalence almost doubled from 26.0% (95%CI: 22.4, 30.0%) in March 2021 to 48.7% (95%CI: 44.3, 53.2%) in July 2021. Seroprevalence was highly heterogeneous by age and geography in these populations—higher seroprevalence was observed in the urban informal settlement (compared to the rural setting), and children aged <10 years had the lowest seroprevalence in both sites. Only 1.2% and 1.6% of the study participants reported receipt of at least one dose of the COVID-19 vaccine by the second round of serosurvey—none by the first round. Conclusions: In these two populations, SARS-CoV-2 seroprevalence increased rapidly in the first 16 months of the COVID-19 pandemic in Kenya. It is important to prioritize additional mitigation measures, such as vaccine distribution, in crowded and low socioeconomic settings.","PeriodicalId":12593,"journal":{"name":"Gates Open Research","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45905909","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-06-12DOI: 10.12688/gatesopenres.14573.1
P. P. Patil, S. Mutnuri
Background: The use of insufficiently treated wastewater or faecal sludge in agriculture raises concerns because of the pathogen content. Helminth eggs are one of the most crucial pathogens for ensuring public health and safety. Widely used disinfection treatment methods do not guarantee the complete inactivation of helminth eggs. The current study evaluated the effectiveness of anaerobic digestion and electrochemical process on helminth (Ascaris suum) egg inactivation. Methods: Lab-scale biochemical methane potential (BMP) assay was conducted by spiking A. suum eggs in a serum bottle. Total solid (TS), volatile solid (VS), pH, biogas production and its composition, and volatile fatty acids (VFA) were analyzed along with A. suum inactivation every third day for the initial 15 days and fifth day for 45 days. In the second set of experiments, a hypochlorite (4700 ppm) solution was generated by electrolysis of aqueous NaCl solution in a membrane-less electrochemical cell. The hypochlorite was diluted (940, 470, 235, and 156ppm) in wastewater, spiked with A. suum eggs and then examined for inactivation at regular intervals. Results: The results of the anaerobic digestion treatment documented 98% inactivation of A. suum eggs (0.15 eggs/mL) in 35 days and remained at 0.14 eggs/mL until day 45. Correlation analysis revealed a positive relationship between non-viable eggs and pH and a negative relationship with all the other parameters. Electrochemical treatment achieved 10% inactivation at 940 ppm concentration in 24h. Conclusions: This study revealed that the inactivation of A. suum eggs by anaerobic digestion or electrochemical treatment is a combined effect of more than one parameter.
{"title":"Study of helminth eggs (Ascaris suum) inactivation by anaerobic digestion and electrochemical treatment","authors":"P. P. Patil, S. Mutnuri","doi":"10.12688/gatesopenres.14573.1","DOIUrl":"https://doi.org/10.12688/gatesopenres.14573.1","url":null,"abstract":"Background: The use of insufficiently treated wastewater or faecal sludge in agriculture raises concerns because of the pathogen content. Helminth eggs are one of the most crucial pathogens for ensuring public health and safety. Widely used disinfection treatment methods do not guarantee the complete inactivation of helminth eggs. The current study evaluated the effectiveness of anaerobic digestion and electrochemical process on helminth (Ascaris suum) egg inactivation. Methods: Lab-scale biochemical methane potential (BMP) assay was conducted by spiking A. suum eggs in a serum bottle. Total solid (TS), volatile solid (VS), pH, biogas production and its composition, and volatile fatty acids (VFA) were analyzed along with A. suum inactivation every third day for the initial 15 days and fifth day for 45 days. In the second set of experiments, a hypochlorite (4700 ppm) solution was generated by electrolysis of aqueous NaCl solution in a membrane-less electrochemical cell. The hypochlorite was diluted (940, 470, 235, and 156ppm) in wastewater, spiked with A. suum eggs and then examined for inactivation at regular intervals. Results: The results of the anaerobic digestion treatment documented 98% inactivation of A. suum eggs (0.15 eggs/mL) in 35 days and remained at 0.14 eggs/mL until day 45. Correlation analysis revealed a positive relationship between non-viable eggs and pH and a negative relationship with all the other parameters. Electrochemical treatment achieved 10% inactivation at 940 ppm concentration in 24h. Conclusions: This study revealed that the inactivation of A. suum eggs by anaerobic digestion or electrochemical treatment is a combined effect of more than one parameter.","PeriodicalId":12593,"journal":{"name":"Gates Open Research","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46787017","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-05-30DOI: 10.12688/gatesopenres.14679.1
Aurélie Brunie, Rebecca Callahan
Background: An expanded range of contraceptive methods could reduce unintended pregnancies. User preferences research is important for successful development of products people want to us. This paper describes four approaches to preferences research soliciting user input in different ways: 1) perspectives on contraceptive method characteristics, 2) reactions to products in development, 3) trade-offs between contraceptive method characteristics, and 4) “blue-sky” ideas on novel contraceptive technologies.Methods: We conducted two mixed-method studies: one implemented in Burkina Faso and Uganda combining three of these approaches, and the other implemented in India and Nigeria using two approaches. We share observations on the strengths and weaknesses of each approach and draw on our experience to highlight lessons learned for future user preferences studies.Results: Each approach contributes to product development in different ways, and the usefulness of each methodology depends on the product development stage and corresponding informational needs.Conclusions: Recommendations for future research include combining different methods, angles, and perspectives; using sequential designs whenever possible; tailoring product descriptions to user understanding for optimal feedback; and acknowledging the value and limitations of both quantitative results for modeling demand and idiosyncratic ideas to inspire development of new products.
{"title":"Understanding how they really feel: Lesson learned from four approaches to soliciting user preferences for new contraceptive products in development","authors":"Aurélie Brunie, Rebecca Callahan","doi":"10.12688/gatesopenres.14679.1","DOIUrl":"https://doi.org/10.12688/gatesopenres.14679.1","url":null,"abstract":"<ns3:p><ns3:bold>Background</ns3:bold>: An expanded range of contraceptive methods could reduce unintended pregnancies. User preferences research is important for successful development of products people want to us. This paper describes four approaches to preferences research soliciting user input in different ways: 1) perspectives on contraceptive method characteristics, 2) reactions to products in development, 3) trade-offs between contraceptive method characteristics, and 4) “blue-sky” ideas on novel contraceptive technologies.</ns3:p><ns3:p> </ns3:p><ns3:p> <ns3:bold>Methods</ns3:bold>: We conducted two mixed-method studies: one implemented in Burkina Faso and Uganda combining three of these approaches, and the other implemented in India and Nigeria using two approaches. We share observations on the strengths and weaknesses of each approach and draw on our experience to highlight lessons learned for future user preferences studies.</ns3:p><ns3:p> </ns3:p><ns3:p> <ns3:bold>Results</ns3:bold>: Each approach contributes to product development in different ways, and the usefulness of each methodology depends on the product development stage and corresponding informational needs.</ns3:p><ns3:p> </ns3:p><ns3:p> <ns3:bold>Conclusions</ns3:bold>: Recommendations for future research include combining different methods, angles, and perspectives; using sequential designs whenever possible; tailoring product descriptions to user understanding for optimal feedback; and acknowledging the value and limitations of both quantitative results for modeling demand and idiosyncratic ideas to inspire development of new products.</ns3:p>","PeriodicalId":12593,"journal":{"name":"Gates Open Research","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135643477","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-05-26eCollection Date: 2022-01-01DOI: 10.12688/gatesopenres.13587.2
Joseph M Zulu, Trevor Mwamba, Alyssa Rosen, Tulani Francis L Matenga, Joseph Mulanda, Mutale Kaimba, Masitano Chilembo, Madaliso Silondwa, Royd L Kamboyi, Sylvia Chila Simwanza, George Sichone, Malizgani Paul Chavula
Background: Within the Voluntary Medical Male Circumcision (VMMC) programme, community engagement has been central in facilitating the acceptance of VMMC, especially in non-circumcising communities. We used the case of the development of community engagement plans for sustainability of VMMC in Zambia to illustrate diversity of stakeholders, their power, roles, and strategies in community engagement. Methods: Data were collected using document review, in-depth interviews (n=35) and focus group discussions (n=35) with community stakeholders, health workers, health centre committees, counsellors, teachers, community volunteers and parents/caregivers. Data were analysed using thematic analysis. The analysis was guided by the power and interest model. Results: Differences were noted between the rural and urban sites in terms of power/influence and interest rating of community stakeholders who could be involved in the sustainability phase of the VMMC response in Zambia. For example, in the urban setting, neighbourhood health committees (NHCs), health workers, leaders of clubs, community health workers (CHWs), radio, television and social media platforms were ranked highest. From this list, social media and television platforms were not highly ranked in rural areas. Some stakeholders had more sources of power than others. Forms or sources of power included technical expertise, local authority, financial resources, collective action (action through schools, churches, media platforms, other community spaces), and relational power. Key roles and strategies included strengthening and broadening local coordination systems, enhancing community involvement, promoting community-led monitoring and evaluation, through the use of locally recognised communication spaces and channels, facilitating ownership of VMMC, and improving local accountability processes in VMMC activities. Conclusions: By consulting with the most relevant stakeholders, and considering community needs in programme development, the VMMC programme may be able to leverage the community structures and systems to reduce long term demand generation costs for VMMC and increase the acceptability and frequency of male circumcision.
{"title":"Community engagement for the Voluntary Medical Male Circumcision (VMMC) program: an analysis of key stakeholder roles to promote a sustainable program in Zambia.","authors":"Joseph M Zulu, Trevor Mwamba, Alyssa Rosen, Tulani Francis L Matenga, Joseph Mulanda, Mutale Kaimba, Masitano Chilembo, Madaliso Silondwa, Royd L Kamboyi, Sylvia Chila Simwanza, George Sichone, Malizgani Paul Chavula","doi":"10.12688/gatesopenres.13587.2","DOIUrl":"10.12688/gatesopenres.13587.2","url":null,"abstract":"<p><p><b>Background:</b> Within the Voluntary Medical Male Circumcision (VMMC) programme, community engagement has been central in facilitating the acceptance of VMMC, especially in non-circumcising communities. We used the case of the development of community engagement plans for sustainability of VMMC in Zambia to illustrate diversity of stakeholders, their power, roles, and strategies in community engagement. <b>Methods:</b> Data were collected using document review, in-depth interviews (n=35) and focus group discussions (n=35) with community stakeholders, health workers, health centre committees, counsellors, teachers, community volunteers and parents/caregivers. Data were analysed using thematic analysis. The analysis was guided by the power and interest model. <b>Results:</b> Differences were noted between the rural and urban sites in terms of power/influence and interest rating of community stakeholders who could be involved in the sustainability phase of the VMMC response in Zambia. For example, in the urban setting, neighbourhood health committees (NHCs), health workers, leaders of clubs, community health workers (CHWs), radio, television and social media platforms were ranked highest. From this list, social media and television platforms were not highly ranked in rural areas. Some stakeholders had more sources of power than others. Forms or sources of power included technical expertise, local authority, financial resources, collective action (action through schools, churches, media platforms, other community spaces), and relational power. Key roles and strategies included strengthening and broadening local coordination systems, enhancing community involvement, promoting community-led monitoring and evaluation, through the use of locally recognised communication spaces and channels, facilitating ownership of VMMC, and improving local accountability processes in VMMC activities. <b>Conclusions:</b> By consulting with the most relevant stakeholders, and considering community needs in programme development, the VMMC programme may be able to leverage the community structures and systems to reduce long term demand generation costs for VMMC and increase the acceptability and frequency of male circumcision.</p>","PeriodicalId":12593,"journal":{"name":"Gates Open Research","volume":"6 ","pages":"50"},"PeriodicalIF":0.0,"publicationDate":"2023-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10105033/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9552842","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}