Pub Date : 2024-10-01DOI: 10.1016/j.bsheal.2024.09.004
Yage Wang , Jiayuan Liang , Zhibo Xie , Bing Wang , Jinhua Song , Baicheng Xia , Huiling Wang , Yao Zhang , Ye Chen , Ling Chen , Shi Cong , Yu Liu , Aili Cui , Yan Zhang
Rhinovirus (RV) is a common pathogen that causes respiratory tract infection and can cause outbreaks in hospitals and welfare institutions. A cluster of respiratory diseases occurred in a primary school in Shenyang City, Liaoning Province, China, in 2022. In this outbreak, a total of 31 students had symptoms similar to those of upper respiratory tract infection, mainly cough and sore throat. Among them, 27 throat swabs were collected and identified for respiratory pathogens by TaqMan low-density array (TLDA), quantitative real-time polymerase chain reaction (PCR), reverse transcription-nested PCR and whole-genome sequencing. Out of the 27 specimens, 24 tested positive for RV, and 21 RV viral protein 1 sequences were obtained, of which 15 (71.43%) were identified as RV-A49, while 2 RV-A20 and 4 sequences from 2 specimens were RV-A30 coinfected with RV-C15. In addition, one whole-genome sequence (WGS) of RV-A49 was obtained, and three unique amino acid mutations were found compared to 23 WGS of RV-A49 from GenBank. In conclusion, this outbreak of upper respiratory tract infection is caused by RV, mainly RV-A49.
{"title":"An outbreak of rhinovirus infection in a primary school in Shenyang City, China, in 2022","authors":"Yage Wang , Jiayuan Liang , Zhibo Xie , Bing Wang , Jinhua Song , Baicheng Xia , Huiling Wang , Yao Zhang , Ye Chen , Ling Chen , Shi Cong , Yu Liu , Aili Cui , Yan Zhang","doi":"10.1016/j.bsheal.2024.09.004","DOIUrl":"10.1016/j.bsheal.2024.09.004","url":null,"abstract":"<div><div>Rhinovirus (RV) is a common pathogen that causes respiratory tract infection and can cause outbreaks in hospitals and welfare institutions. A cluster of respiratory diseases occurred in a primary school in Shenyang City, Liaoning Province, China, in 2022. In this outbreak, a total of 31 students had symptoms similar to those of upper respiratory tract infection, mainly cough and sore throat. Among them, 27 throat swabs were collected and identified for respiratory pathogens by TaqMan low-density array (TLDA), quantitative real-time polymerase chain reaction (PCR), reverse transcription-nested PCR and whole-genome sequencing. Out of the 27 specimens, 24 tested positive for RV, and 21 RV viral protein 1 sequences were obtained, of which 15 (71.43%) were identified as RV-A49, while 2 RV-A20 and 4 sequences from 2 specimens were RV-A30 coinfected with RV-C15. In addition, one whole-genome sequence (WGS) of RV-A49 was obtained, and three unique amino acid mutations were found compared to 23 WGS of RV-A49 from GenBank. In conclusion, this outbreak of upper respiratory tract infection is caused by RV, mainly RV-A49.</div></div>","PeriodicalId":36178,"journal":{"name":"Biosafety and Health","volume":"6 5","pages":"Pages 298-303"},"PeriodicalIF":3.5,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142534409","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 : 2024-10-01DOI: 10.1016/j.bsheal.2024.07.005
Jun Liu , Gary Wong , Hui Li , Yan Yang , Yuxi Cao , Yongfeng Li , Yan Wu , Zijie Zhang , Cong Jin , Xi Wang , Yongwen Chen , Bin Su , Zhongfang Wang , Qihui Wang , Yunlong Cao , Guobing Chen , Zhaohui Qian , Jincun Zhao , Guizhen Wu
Biosafety hazards can trigger a host immune response after infection, invasion, or contact with the host. Whether infection with a microorganism results in disease or biosafety concerns depends to a large extent on the immune status of the population. Therefore, it is essential to investigate the immunological characteristics of the host and the mechanisms of biological threats and agents to protect the host more effectively. Emerging and re-emerging infectious diseases, such as the current coronavirus disease 2019 (COVID-19) pandemic, have raised concerns regarding both biosafety and immunology worldwide. Interdisciplinary studies involved in biosafety and immunology are relevant in many fields, including the development of vaccines and other immune interventions such as monoclonal antibodies and T-cells, herd immunity (or population-level barrier immunity), immunopathology, and multispecies immunity, i.e., animals and even plants. Meanwhile, advances in immunological science and technology are occurring rapidly, resulting in important research achievements that may contribute to the recognition of emerging biosafety hazards, as well as early warning, prevention, and defense systems. This review provides an overview of the interdisciplinary field of biosafety and immunology. Close collaboration and innovative application of immunology in the field of biosafety is becoming essential for human health.
生物安全危害在感染、入侵或接触宿主后会引发宿主免疫反应。感染微生物是否会导致疾病或生物安全问题，在很大程度上取决于人群的免疫状况。因此，必须研究宿主的免疫学特征以及生物威胁和生物制剂的机制，以便更有效地保护宿主。新出现和再次出现的传染病，如目前的 2019 年冠状病毒病（COVID-19）大流行，引起了全世界对生物安全和免疫学的关注。生物安全和免疫学所涉及的跨学科研究与许多领域息息相关，包括疫苗和其他免疫干预措施（如单克隆抗体和 T 细胞）的开发、群体免疫（或种群屏障免疫）、免疫病理学以及多物种免疫（即动物甚至植物）。与此同时，免疫学科学和技术也在迅速发展，取得了重要的研究成果，这些成果可能有助于识别新出现的生物安全危害，并有助于建立早期预警、预防和防御系统。本综述概述了生物安全与免疫学这一跨学科领域。免疫学在生物安全领域的密切合作和创新应用对人类健康至关重要。
{"title":"Biosafety and immunology: An interdisciplinary field for health priority","authors":"Jun Liu , Gary Wong , Hui Li , Yan Yang , Yuxi Cao , Yongfeng Li , Yan Wu , Zijie Zhang , Cong Jin , Xi Wang , Yongwen Chen , Bin Su , Zhongfang Wang , Qihui Wang , Yunlong Cao , Guobing Chen , Zhaohui Qian , Jincun Zhao , Guizhen Wu","doi":"10.1016/j.bsheal.2024.07.005","DOIUrl":"10.1016/j.bsheal.2024.07.005","url":null,"abstract":"<div><div>Biosafety hazards can trigger a host immune response after infection, invasion, or contact with the host. Whether infection with a microorganism results in disease or biosafety concerns depends to a large extent on the immune status of the population. Therefore, it is essential to investigate the immunological characteristics of the host and the mechanisms of biological threats and agents to protect the host more effectively. Emerging and re-emerging infectious diseases, such as the current coronavirus disease 2019 (COVID-19) pandemic, have raised concerns regarding both biosafety and immunology worldwide. Interdisciplinary studies involved in biosafety and immunology are relevant in many fields, including the development of vaccines and other immune interventions such as monoclonal antibodies and T-cells, herd immunity (or population-level barrier immunity), immunopathology, and multispecies immunity, i.e., animals and even plants. Meanwhile, advances in immunological science and technology are occurring rapidly, resulting in important research achievements that may contribute to the recognition of emerging biosafety hazards, as well as early warning, prevention, and defense systems. This review provides an overview of the interdisciplinary field of biosafety and immunology. Close collaboration and innovative application of immunology in the field of biosafety is becoming essential for human health.</div></div>","PeriodicalId":36178,"journal":{"name":"Biosafety and Health","volume":"6 5","pages":"Pages 310-318"},"PeriodicalIF":3.5,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141693079","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 : 2024-10-01DOI: 10.1016/j.bsheal.2024.09.001
Chen Yang , Yanying Yu , Qi Peng , Jingwei Song , Bo Sun , Yi Shi , Qiang Ding
Despite the availability of vaccines and antiviral treatments, the continued emergence of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) variants and breakthrough infections underscores the need for new, potent antiviral therapies. In a previous study, we established a transcription and replication-competent SARS-CoV-2 virus-like particle (trVLP) system that recapitulates the complete viral life cycle. In this study, we combined high-content screening (HCS) with the SARS-CoV-2 trVLP cell culture system, providing a powerful phenotype-oriented approach to assess the antiviral potential of compounds on a large scale. We screened a library of 3,200 natural compounds and identified drupacine as a potential candidate against SARS-CoV-2 infection. Furthermore, we utilized a SARS-CoV-2 replicon system to demonstrate that drupacine could inhibit viral genome transcription and replication. However, in vitro, enzymatic assays revealed that the inhibition could not be attributed to conventional antiviral targets, such as the viral non-structural proteins nsp5 (MPro) or nsp12 (RdRp). In conclusion, our findings position drupacine as a promising antiviral candidate against SARS-CoV-2, providing a novel scaffold for developing anti-coronavirus disease 2019 therapeutics. Further investigation is required to pinpoint its precise target and mechanism of action.
{"title":"Drupacine as a potent SARS-CoV-2 replication inhibitor in vitro","authors":"Chen Yang , Yanying Yu , Qi Peng , Jingwei Song , Bo Sun , Yi Shi , Qiang Ding","doi":"10.1016/j.bsheal.2024.09.001","DOIUrl":"10.1016/j.bsheal.2024.09.001","url":null,"abstract":"<div><div>Despite the availability of vaccines and antiviral treatments, the continued emergence of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) variants and breakthrough infections underscores the need for new, potent antiviral therapies. In a previous study, we established a transcription and replication-competent SARS-CoV-2 virus-like particle (trVLP) system that recapitulates the complete viral life cycle. In this study, we combined high-content screening (HCS) with the SARS-CoV-2 trVLP cell culture system, providing a powerful phenotype-oriented approach to assess the antiviral potential of compounds on a large scale. We screened a library of 3,200 natural compounds and identified drupacine as a potential candidate against SARS-CoV-2 infection. Furthermore, we utilized a SARS-CoV-2 replicon system to demonstrate that drupacine could inhibit viral genome transcription and replication. However, <em>in vitro,</em> enzymatic assays revealed that the inhibition could not be attributed to conventional antiviral targets, such as the viral non-structural proteins nsp5 (MPro) or nsp12 (RdRp). In conclusion, our findings position drupacine as a promising antiviral candidate against SARS-CoV-2, providing a novel scaffold for developing anti-coronavirus disease 2019 therapeutics. Further investigation is required to pinpoint its precise target and mechanism of action.</div></div>","PeriodicalId":36178,"journal":{"name":"Biosafety and Health","volume":"6 5","pages":"Pages 270-278"},"PeriodicalIF":3.5,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142534419","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 : 2024-10-01DOI: 10.1016/j.bsheal.2024.08.001
Changcheng Wu , Zhongxian Zhang , Zhaoqing Li , Ruorui Li , Shuting Huo , Han Li , Roujian Lu , Houwen Tian , Wenling Wang , Li Zhao , Baoying Huang , Yao Deng , Wenjie Tan
The vaccinia virus Tiantan (VTT) is widely utilized as a smallpox vaccine in China and holds significant importance in the prevention of diseases stemming from poxvirus infections. Nevertheless, few studies have investigated the influence of VTT infection on host gene expression. In this study, we constructed time series transcriptomic profiles of HeLa cells infected with both VTT and western reserve (WR) strains. We observed similar patterns of viral gene expression, while the expression levels of host genes varied between the two strains. There was an immediate and significant repression of host gene expression, particularly in genes associated with oxidative phosphorylation. Conversely, genes involved in nerve growth factor (NGF)-stimulated transcription were significantly activated. The upregulation of genes linked to the ribonucleic acid (RNA)-induced silencing complex (RISC) suggested a potential role for posttranscriptional regulation in the interaction between the vaccinia virus and the host. In the later stages of infection, pathways such as extracellular matrix organization, neutrophil degranulation, complement and interferon responses, translation, and programmed cell death are largely inhibited. A significant number of host genes exhibit correlations with changes in the expression levels of viral genes. The host genes that are negatively correlated with viral genes are mainly enriched in pathways associated with translation and the response to viral infection. This study significantly contributes to advancing our understanding of the dynamics between the vaccinia virus and the host, improving the application of VTTs and facilitating the development of effective vaccines against diseases such as smallpox and monkeypox.
疫苗病毒 "天坛"（VTT）在中国被广泛用作天花疫苗，在预防由痘病毒感染引起的疾病方面具有重要意义。然而，很少有研究探讨 VTT 感染对宿主基因表达的影响。在本研究中，我们构建了感染 VTT 和 Western Reserve（WR）毒株的 HeLa 细胞的时间序列转录组图谱。我们观察到病毒基因表达的相似模式，而宿主基因的表达水平在两种毒株之间存在差异。宿主基因的表达立即受到明显抑制，尤其是与氧化磷酸化相关的基因。相反，参与神经生长因子（NGF）刺激转录的基因则被显著激活。与核糖核酸（RNA）诱导沉默复合体（RISC）相关的基因上调表明，转录后调控在疫苗病毒与宿主的相互作用中可能发挥作用。在感染后期，细胞外基质组织、中性粒细胞脱颗粒、补体和干扰素反应、翻译和细胞程序性死亡等途径在很大程度上受到抑制。大量宿主基因与病毒基因表达水平的变化存在相关性。与病毒基因呈负相关的宿主基因主要集中在与翻译和病毒感染反应相关的通路中。这项研究极大地促进了我们对疫苗病毒与宿主之间动态关系的理解，提高了 VTTs 的应用水平，并有助于开发有效的疫苗来预防天花和猴痘等疾病。
{"title":"Vaccinia virus Tiantan strain blocks host antiviral innate immunity and programmed cell death by disrupting gene expression","authors":"Changcheng Wu , Zhongxian Zhang , Zhaoqing Li , Ruorui Li , Shuting Huo , Han Li , Roujian Lu , Houwen Tian , Wenling Wang , Li Zhao , Baoying Huang , Yao Deng , Wenjie Tan","doi":"10.1016/j.bsheal.2024.08.001","DOIUrl":"10.1016/j.bsheal.2024.08.001","url":null,"abstract":"<div><div>The vaccinia virus Tiantan (VTT) is widely utilized as a smallpox vaccine in China and holds significant importance in the prevention of diseases stemming from poxvirus infections. Nevertheless, few studies have investigated the influence of VTT infection on host gene expression. In this study, we constructed time series transcriptomic profiles of HeLa cells infected with both VTT and western reserve (WR) strains. We observed similar patterns of viral gene expression, while the expression levels of host genes varied between the two strains. There was an immediate and significant repression of host gene expression, particularly in genes associated with oxidative phosphorylation. Conversely, genes involved in nerve growth factor (NGF)-stimulated transcription were significantly activated. The upregulation of genes linked to the ribonucleic acid (RNA)-induced silencing complex (RISC) suggested a potential role for posttranscriptional regulation in the interaction between the vaccinia virus and the host. In the later stages of infection, pathways such as extracellular matrix organization, neutrophil degranulation, complement and interferon responses, translation, and programmed cell death are largely inhibited. A significant number of host genes exhibit correlations with changes in the expression levels of viral genes. The host genes that are negatively correlated with viral genes are mainly enriched in pathways associated with translation and the response to viral infection. This study significantly contributes to advancing our understanding of the dynamics between the vaccinia virus and the host, improving the application of VTTs and facilitating the development of effective vaccines against diseases such as smallpox and monkeypox.</div></div>","PeriodicalId":36178,"journal":{"name":"Biosafety and Health","volume":"6 5","pages":"Pages 286-297"},"PeriodicalIF":3.5,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142534408","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 : 2024-10-01DOI: 10.1016/j.bsheal.2024.09.005
Wenjing Liu , Erxin Zhang , Wei Li , Ruichen Lv , Yanfeng Lin , Yingjia Xu , Jiameng Li , Yuzhen Lai , Yuxin Jiang , Sijia Lin , Xueqin Wang , Peize Zhou , Yue Song , Wanpeng Shen , Yiqian Sun , Yuexi Li
Mpox is a zoonotic disease caused by the monkeypox virus (MPXV). Diagnosing and treating the disease has become a global health concern requiring close attention to its spread to non-endemic regions. Clinical diagnosis is based on laboratory test results. Conventional detection techniques include real-time quantitative polymerase chain reaction (qPCR), genome sequencing, antigen and antibody identification, and virus isolation. Nevertheless, these methods fall short of rapidly and efficiently identifying MPXV, as they require specialized training, specific laboratory environments, and professional-grade equipment. Emerging technologies offer complementary advantages to meet diverse diagnostic needs, including various point-of-care testing (POCT) approaches and integrating biosensors with rapid detection techniques. This review discusses prospective future research avenues for MPXV detection, examining the advances and challenges of various detection techniques which may contribute to the ongoing elimination of mpox human-to-human transmission and serves as a reference for developing effective prevention and control strategies.
{"title":"Advances and challenges of mpox detection technology","authors":"Wenjing Liu , Erxin Zhang , Wei Li , Ruichen Lv , Yanfeng Lin , Yingjia Xu , Jiameng Li , Yuzhen Lai , Yuxin Jiang , Sijia Lin , Xueqin Wang , Peize Zhou , Yue Song , Wanpeng Shen , Yiqian Sun , Yuexi Li","doi":"10.1016/j.bsheal.2024.09.005","DOIUrl":"10.1016/j.bsheal.2024.09.005","url":null,"abstract":"<div><div>Mpox is a zoonotic disease caused by the monkeypox virus (MPXV). Diagnosing and treating the disease has become a global health concern requiring close attention to its spread to non-endemic regions. Clinical diagnosis is based on laboratory test results. Conventional detection techniques include real-time quantitative polymerase chain reaction (qPCR), genome sequencing, antigen and antibody identification, and virus isolation. Nevertheless, these methods fall short of rapidly and efficiently identifying MPXV, as they require specialized training, specific laboratory environments, and professional-grade equipment. Emerging technologies offer complementary advantages to meet diverse diagnostic needs, including various point-of-care testing (POCT) approaches and integrating biosensors with rapid detection techniques. This review discusses prospective future research avenues for MPXV detection, examining the advances and challenges of various detection techniques which may<!--> <!-->contribute to the ongoing elimination of mpox human-to-human<!--> <!-->transmission and serves as a reference<!--> <!-->for developing effective prevention and control strategies.</div></div>","PeriodicalId":36178,"journal":{"name":"Biosafety and Health","volume":"6 5","pages":"Pages 260-269"},"PeriodicalIF":3.5,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142534406","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 : 2024-10-01DOI: 10.1016/j.bsheal.2024.09.003
Mengling Jiang , Muchun Wan , Qinghong Fan , Yuyi Min , Guofang Tang , Yingfen Wen , Yaqing Lin , Ruiying He , Jiaojiao Li , Yue Tang , Yun Lan , Feng Li
Chikungunya virus (CHIKV) infection, responsible for chikungunya fever and occasionally severe symptoms, has emerged as an increasing global health concern following several large-scale outbreaks from Africa, Asia, Europe, and America. Over the past two decades, South and Southeast Asia regions have gradually become hot spots for outbreaks involving multiple CHIKV lineages. In China, most CHIKV infections are imported, making it crucial to trace the origins and transmission routes for effective prevention and control. In January 2024, a case of imported chikungunya fever was confirmed in Guangzhou City, Guangdong Province, China. However, the serum CHIKV viral concentration was too low for cultivation [reverse transcription-polymerase chain reaction (RT-PCR) detection, cycle threshold = 32.62]. Despite this, we successfully obtained the viral genome sequence directly from the whole blood sample using an optimized metatranscriptomic sequencing strategy, achieving a full-length viral genome with an average depth of 54.3X. Further analysis confirmed that the CHIKV virus belonged to the Asian lineage, traced to Timor-Leste, where an endemic CHIKV outbreak had been reported in January 2024, consistent with the patient’s travel history. Finally, we analyzed genetic evolutionary trends and amino acid site variations. This study highlights the identification of a CHIKV infection origin using direct whole-blood metatranscriptomic sequencing, a valuable method for rapidly sequencing low viral-load samples.
{"title":"Full genomic sequence characterization of the chikungunya virus from an imported case with serum viral concentration below culturable level","authors":"Mengling Jiang , Muchun Wan , Qinghong Fan , Yuyi Min , Guofang Tang , Yingfen Wen , Yaqing Lin , Ruiying He , Jiaojiao Li , Yue Tang , Yun Lan , Feng Li","doi":"10.1016/j.bsheal.2024.09.003","DOIUrl":"10.1016/j.bsheal.2024.09.003","url":null,"abstract":"<div><div>Chikungunya virus (CHIKV) infection, responsible for chikungunya fever and occasionally severe symptoms, has emerged as an increasing global health concern following several large-scale outbreaks from Africa, Asia, Europe, and America. Over the past two decades, South and Southeast Asia regions have gradually become hot spots for outbreaks involving multiple CHIKV lineages. In China, most CHIKV infections are imported, making it crucial to trace the origins and transmission routes for effective prevention and control. In January 2024, a case of imported chikungunya fever was confirmed in Guangzhou City, Guangdong Province, China. However, the serum CHIKV viral concentration was too low for cultivation [reverse transcription-polymerase chain reaction (RT-PCR) detection, cycle threshold = 32.62]. Despite this, we successfully obtained the viral genome sequence directly from the whole blood sample using an optimized metatranscriptomic sequencing strategy, achieving a full-length viral genome with an average depth of 54.3X. Further analysis confirmed that the CHIKV virus belonged to the Asian lineage, traced to Timor-Leste, where an endemic CHIKV outbreak had been reported in January 2024, consistent with the patient’s travel history. Finally, we analyzed genetic evolutionary trends and amino acid site variations. This study highlights the identification of a CHIKV infection origin using direct whole-blood metatranscriptomic sequencing, a valuable method for rapidly sequencing low viral-load samples.</div></div>","PeriodicalId":36178,"journal":{"name":"Biosafety and Health","volume":"6 5","pages":"Pages 304-309"},"PeriodicalIF":3.5,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142534410","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 : 2024-10-01DOI: 10.1016/j.bsheal.2024.09.002
Qi Jiang , Xi Wu , Fangyu Dong , Shan Qiao , Qiaoyun Shi , Changyong Jian , Chen Chen , Jiuyue Zhou , Youchun Wang , Weijin Huang
In order to clarify the pre-exist immunity background of different human coronaviruses (HCoV), this study investigated the positive rate of spike (S) protein antibodies of HCoV, including HCoV- severe acute respiratory syndrome (SARS) −associated coronavirus (SARS-CoV-1), severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), Middle East respiratory syndrome coronavirus (MERS-CoV), HCoV-229E, HCoV-NL63, HCoV-HKU1 and HCoV-OC43, before and after the Coronavirus Disease 2019 (COVID-19) outbreak. We utilized pseudotyped virus-based neutralization assays (PBNA) or enzyme-linked immunosorbent assays (ELISA) to detect antibody levels against HCoV in serum samples collected in 2009–2010 and 2023. The PBNA results showed that neutralizing antibodies against SARS-CoV-1 and the MERS-CoV were negative. In the serum samples from 2009 to 2010, neutralizing antibodies against SARS-CoV-2 (D614G) were negative, whereas in the serum samples from 2023, 73 samples (73 %) showed neutralizing reactions with the SARS-CoV-2 D614G strain, 96 samples (96 %) with the BA.5 strain, and 91 samples (91 %) with the BF.7 strain. Among pre-COVID-19 samples, 33 % (33/100) showed neutralizing reactions with HCoV-229E and 63 % (63/100) with HCoV-NL63. Among post-COVID-19 samples, 50 % (50/100) showed neutralizing reactions with HCoV-229E and 49 % (49/100) with HCoV-NL63. Due to the different receptors of alpha coronavirus genus compared to other beta coronavirus genus, neutralizing antibodies against HCoV-OC43 and HCoV-HKU1 virus cannot be detected by constructing corresponding pseudotyped virus. Binding antibodies against HCoV-OC43 and HCoV-HKU1 virus were detected using ELISA. The results revealed that among pre-COVID-19 samples, 83 % (83/100) and 45 % (45/100) had binding activity with HCoV-OC43 and HCoV-HKU1, respectively. Among post-COVID-19 samples, 100 % (100/100) and 81 % (81/100) had binding activity with HCoV-OC43 and HCoV-HKU1, respectively.
{"title":"Construction of pseudotyped human coronaviruses and detection of pre-existing antibodies in the human population","authors":"Qi Jiang , Xi Wu , Fangyu Dong , Shan Qiao , Qiaoyun Shi , Changyong Jian , Chen Chen , Jiuyue Zhou , Youchun Wang , Weijin Huang","doi":"10.1016/j.bsheal.2024.09.002","DOIUrl":"10.1016/j.bsheal.2024.09.002","url":null,"abstract":"<div><div>In order to clarify the pre-exist immunity background of different human coronaviruses (HCoV), this study investigated the positive rate of spike (S) protein antibodies of HCoV, including HCoV- severe acute respiratory syndrome (SARS) −associated coronavirus (SARS-CoV-1), severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), Middle East respiratory syndrome coronavirus (MERS-CoV), HCoV-229E, HCoV-NL63, HCoV-HKU1 and HCoV-OC43, before and after the Coronavirus Disease 2019 (COVID-19) outbreak. We utilized pseudotyped virus-based neutralization assays (PBNA) or enzyme-linked immunosorbent assays (ELISA) to detect antibody levels against HCoV in serum samples collected in 2009–2010 and 2023. The PBNA results showed that neutralizing antibodies against SARS-CoV-1 and the MERS-CoV were negative. In the serum samples from 2009 to 2010, neutralizing antibodies against SARS-CoV-2 (D614G) were negative, whereas in the serum samples from 2023, 73 samples (73 %) showed neutralizing reactions with the SARS-CoV-2 D614G strain, 96 samples (96 %) with the BA.5 strain, and 91 samples (91 %) with the BF.7 strain. Among pre-COVID-19 samples, 33 % (33/100) showed neutralizing reactions with HCoV-229E and 63 % (63/100) with HCoV-NL63. Among post-COVID-19 samples, 50 % (50/100) showed neutralizing reactions with HCoV-229E and 49 % (49/100) with HCoV-NL63. Due to the different receptors of alpha coronavirus genus compared to other beta coronavirus genus, neutralizing antibodies against HCoV-OC43 and HCoV-HKU1 virus cannot be detected by constructing corresponding pseudotyped virus. Binding antibodies against HCoV-OC43 and HCoV-HKU1 virus were detected using ELISA. The results revealed that among pre-COVID-19 samples, 83 % (83/100) and 45 % (45/100) had binding activity with HCoV-OC43 and HCoV-HKU1, respectively. Among post-COVID-19 samples, 100 % (100/100) and 81 % (81/100) had binding activity with HCoV-OC43 and HCoV-HKU1, respectively.</div></div>","PeriodicalId":36178,"journal":{"name":"Biosafety and Health","volume":"6 5","pages":"Pages 279-285"},"PeriodicalIF":3.5,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142534407","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 : 2024-10-01DOI: 10.1016/j.bsheal.2024.09.006
Likui Wang , Lei Guo , Yunguo Liu , Anna Du , Shuo Zhao , George F. Gao
{"title":"Developing an advanced course of vaccinology in middle-income countries: The case of China","authors":"Likui Wang , Lei Guo , Yunguo Liu , Anna Du , Shuo Zhao , George F. Gao","doi":"10.1016/j.bsheal.2024.09.006","DOIUrl":"10.1016/j.bsheal.2024.09.006","url":null,"abstract":"","PeriodicalId":36178,"journal":{"name":"Biosafety and Health","volume":"6 5","pages":"Pages 257-259"},"PeriodicalIF":3.5,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142534418","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 : 2024-08-01DOI: 10.1016/j.bsheal.2024.07.004
Lu Zhang , Zihao Wang , Nan Chang , Meng Shang , Xiaohui Wei , Ke Li , Jinyu Li , Xinchang Lun , Haoqiang Ji , Qiyong Liu
Climatic factors are closely associated with the occurrence of vector-borne diseases, and they also influence the distribution of vectors. The occurrence of plague is closely related to the population dynamics of fleas and their host animals, as well as climatic conditions. This study focused on Xilingol League, utilizing climatic and flea index data from 2012 to 2021. Spearman correlation and "Boruta" importance analysis were conducted to screen for climatic variables. A generalized additive model (GAM) was employed to investigate the influence of climatic factors and rodent density on the flea index. GAM analysis revealed distinct trends in flea index among different rodent hosts. For Meriones unguiculatus, the flea index declined with increased density and with higher humidity, yet rose with greater lagged sunshine duration. For Spermophilus dauricus, an initial increase in flea index with density was observed, followed by a decrease, and a rise in the index was noted when ground temperatures were low. This study reveals the nonlinear interactions and lag effects among climatic factors, density, and flea index. Climatic factors and density variably influence the flea index of two Yersinia pestis hosts. This research advances the prediction and early warning efforts for plague control, providing a theoretical basis for rodent and flea eradication strategies.
{"title":"Relationship between climatic factors and the flea index of two plague hosts in Xilingol League, Inner Mongolia Autonomous Region","authors":"Lu Zhang , Zihao Wang , Nan Chang , Meng Shang , Xiaohui Wei , Ke Li , Jinyu Li , Xinchang Lun , Haoqiang Ji , Qiyong Liu","doi":"10.1016/j.bsheal.2024.07.004","DOIUrl":"10.1016/j.bsheal.2024.07.004","url":null,"abstract":"<div><p>Climatic factors are closely associated with the occurrence of vector-borne diseases, and they also influence the distribution of vectors. The occurrence of plague is closely related to the population dynamics of fleas and their host animals, as well as climatic conditions. This study focused on Xilingol League, utilizing climatic and flea index data from 2012 to 2021. Spearman correlation and \"Boruta\" importance analysis were conducted to screen for climatic variables. A generalized additive model (GAM) was employed to investigate the influence of climatic factors and rodent density on the flea index. GAM analysis revealed distinct trends in flea index among different rodent hosts. For <em>Meriones unguiculatus</em>, the flea index declined with increased density and with higher humidity, yet rose with greater lagged sunshine duration. For <em>Spermophilus dauricus</em>, an initial increase in flea index with density was observed, followed by a decrease, and a rise in the index was noted when ground temperatures were low. This study reveals the nonlinear interactions and lag effects among climatic factors, density, and flea index. Climatic factors and density variably influence the flea index of two <em>Yersinia pestis</em> hosts. This research advances the prediction and early warning efforts for plague control, providing a theoretical basis for rodent and flea eradication strategies.</p></div>","PeriodicalId":36178,"journal":{"name":"Biosafety and Health","volume":"6 4","pages":"Pages 244-250"},"PeriodicalIF":3.5,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2590053624000867/pdfft?md5=e87ef9b2923994883b1a0340cc1d0f5b&pid=1-s2.0-S2590053624000867-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141688706","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 : 2024-08-01DOI: 10.1016/j.bsheal.2024.05.001
In recent years, as the infectious diseases caused by pathogens such as novel coronavirus and mpox (formerly called monkeypox) spread globally, the significance of identification, preservation, and sharing of pathogenic resources become prominent. Along with the rapid development of biorepositories, it is imperative to evaluate their operation in a scientific manner. By using the literature review and modified Delphi method, this study develops a benchmarking tool for the comprehensive evaluation of the operation of biorepositories for pathogenic resources. The effective response rates of both rounds of expert surveys were 100 %. The authority coefficients (Cr) were 0.82 and 0.85, respectively, manifesting the reliability of consultation results. In the second-round survey, the Kendall’s coefficient of concordance (Kendall’s W) of all indicators ranged from 0.09 to 0.31 (P < 0.001), the comprehensive score ranged from 4.02 to 4.94, the standard deviation ranged from 0.21 to 0.77, and the coefficient of variation (CV) ranged from 0.04 to 0.22, indicating that the expert opinions reached consensus. The final benchmarking tool was composed of 4 primary indicators, 12 secondary indicators, and 65 tertiary indicators. The weights of the four primary indicators allocated through the rank-sum ratio method, namely organizational structure, management requirements, biobanking capacity, and sharing capacity, were 30.50 %, 30.08 %, 25.45 %, and 13.97 %, respectively. The benchmarking tool established in this study provides references for the comprehensive evaluation of the operation and puts forward advice for the sustainable development of biorepositories for pathogenic resources.
{"title":"Establishment of the benchmarking tool for evaluating the operation of biorepositories for pathogenic resource using a modified Delphi method","authors":"","doi":"10.1016/j.bsheal.2024.05.001","DOIUrl":"10.1016/j.bsheal.2024.05.001","url":null,"abstract":"<div><p>In recent years, as the infectious diseases caused by pathogens such as novel coronavirus and mpox (formerly called monkeypox) spread globally, the significance of identification, preservation, and sharing of pathogenic resources become prominent. Along with the rapid development of biorepositories, it is imperative to evaluate their operation in a scientific manner. By using the literature review and modified Delphi method, this study develops a benchmarking tool for the comprehensive evaluation of the operation of biorepositories for pathogenic resources. The effective response rates of both rounds of expert surveys were 100 %. The authority coefficients (Cr) were 0.82 and 0.85, respectively, manifesting the reliability of consultation results. In the second-round survey, the Kendall’s coefficient of concordance (Kendall’s W) of all indicators ranged from 0.09 to 0.31 (<em>P</em> < 0.001), the comprehensive score ranged from 4.02 to 4.94, the standard deviation ranged from 0.21 to 0.77, and the coefficient of variation (CV) ranged from 0.04 to 0.22, indicating that the expert opinions reached consensus. The final benchmarking tool was composed of 4 primary indicators, 12 secondary indicators, and 65 tertiary indicators. The weights of the four primary indicators allocated through the rank-sum ratio method, namely organizational structure, management requirements, biobanking capacity, and sharing capacity, were 30.50 %, 30.08 %, 25.45 %, and 13.97 %, respectively. The benchmarking tool established in this study provides references for the comprehensive evaluation of the operation and puts forward advice for the sustainable development of biorepositories for pathogenic resources.</p></div>","PeriodicalId":36178,"journal":{"name":"Biosafety and Health","volume":"6 4","pages":"Pages 199-205"},"PeriodicalIF":3.5,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2590053624000806/pdfft?md5=63302128e2e0a2dcc03c37569419faf5&pid=1-s2.0-S2590053624000806-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141390892","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}
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