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Integrating geospatial tools is crucial for enhancing control strategies against human lymphatic filarial infections in Ghana: A comprehensive review 综合地理空间工具对于加强加纳人淋巴丝虫病感染控制战略至关重要:一项全面审查
IF 2 Q3 INFECTIOUS DISEASES Pub Date : 2025-06-27 DOI: 10.1016/j.parepi.2025.e00444
Efiba Vidda Senkyire Kwarteng , Ebenezer Asiedu , Emmanuel Kobla Atsu Amewu , Arnold Abakah , Samuel Ato Andam-Akorful , Allan Alfred Duker , Alexander Kwarteng
In Ghana, lymphatic filariasis (LF) infection transmission remains high in some endemic foci and continues to frustrate current control programs, posing serious health threats. Over the years, significant economic investments and efforts have been made to control human filarial infections in endemic regions. The need for interdisciplinary strategic action is crucial in eliminating human filarial infections. In this review, we discuss the application and integration of geospatial technology and Geographic Information Systems tools into existing control strategies to accelerate the elimination of lymphatic filarial infections in Ghana. Our analysis of six publications that have applied geospatial tools in LF in Ghana reveals the potential of geospatial tools to enhance surveillance, predict risk factors, and monitor MDA programs. It also highlights the limited integration of these tools in current LF control strategies and the need to address challenges such as data availability and funding to fully realize their benefits.
在加纳,淋巴丝虫病(LF)感染传播在一些地方性疫源地仍然很高,并继续阻碍当前的控制规划,构成严重的健康威胁。多年来,为控制流行地区的人类丝虫病感染进行了大量的经济投资和努力。跨学科战略行动的必要性对于消除人类丝虫病感染至关重要。在这篇综述中,我们讨论了地理空间技术和地理信息系统工具在加纳现有控制策略中的应用和集成,以加速消除淋巴丝虫病感染。我们分析了在加纳LF应用地理空间工具的六份出版物,揭示了地理空间工具在加强监测、预测风险因素和监测MDA项目方面的潜力。它还强调了这些工具在当前LF控制策略中的有限集成,以及需要解决数据可用性和资金等挑战,以充分实现其优势。
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引用次数: 0
Malaria-induced dysregulation of selected micronutrients (Ca, Mg, Na, K, Zn, Fe, Co) and plasma free amino acids; implications for pathogenesis and host immunity in a Nigerian population 疟疾引起的选定微量营养素(Ca、Mg、Na、K、Zn、Fe、Co)和血浆游离氨基酸的失调;对尼日利亚人群发病机制和宿主免疫的影响
IF 2 Q3 INFECTIOUS DISEASES Pub Date : 2025-06-26 DOI: 10.1016/j.parepi.2025.e00443
Chukwuma Raphael Ekeanyanwu , Paul Chidoka Chikezie , Chidinma Lynda Ekeanyanwu
Malaria remains a significant global health burden, particularly in regions like Nigeria. This study investigated the impact of malaria infection on plasma amino acid and micronutrient levels in a Nigerian population. A cross-sectional study was conducted on 200 participants, including malarious and healthy controls. Plasma levels of amino acids and selected micronutrients (Ca, Mg, Na, K, Zn, Fe, Co) were measured using HPLC and ICP-MS, respectively. Results revealed significant alterations (p < 0.01) in plasma amino acid profiles (except histidine and proline) with increasing malaria severity. Essential amino acids including branched-chain amino acids like leucine and valine were depleted, indicating metabolic disruptions in the diseases. Aromatic and immune-related amino acids (arginine, tyrosine, tryptophan, glutamine, methionine, and cysteine) were reduced significantly (p < 0.01) compared to the uninfected groups. Additionally, malarious individuals exhibited significant deficiencies in several micronutrients, including calcium, sodium, zinc, and iron (p < 0.01). Malaria infection induces a complex metabolic response, leading to nutrient imbalances that may contribute to disease severity. Further research is warranted to explore the potential of targeted nutritional interventions to improve patient outcomes.
疟疾仍然是一个重大的全球卫生负担,特别是在尼日利亚等地区。本研究调查了疟疾感染对尼日利亚人群血浆氨基酸和微量营养素水平的影响。对200名参与者进行了横断面研究,包括疟疾和健康对照。分别用高效液相色谱法和ICP-MS法测定血浆中氨基酸和选定微量营养素(Ca、Mg、Na、K、Zn、Fe、Co)的含量。结果显示显著改变(p <;血浆氨基酸谱(组氨酸和脯氨酸除外)随疟疾严重程度的增加而增加。必需氨基酸,包括支链氨基酸,如亮氨酸和缬氨酸,都被耗尽了,这表明疾病的代谢中断。芳香和免疫相关的氨基酸(精氨酸、酪氨酸、色氨酸、谷氨酰胺、蛋氨酸和半胱氨酸)显著减少(p <;0.01)。此外,疟疾个体表现出几种微量营养素的显著缺乏,包括钙、钠、锌和铁(p <;0.01)。疟疾感染引起复杂的代谢反应,导致营养失衡,从而可能导致疾病的严重程度。需要进一步的研究来探索有针对性的营养干预以改善患者预后的潜力。
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引用次数: 0
Sliding mode control with stochastic modeling and mobility interaction for managing epidemic spread in high-population regions 基于随机建模和流动性相互作用的滑模控制在人口密集地区的流行病传播管理
IF 2 Q3 INFECTIOUS DISEASES Pub Date : 2025-06-16 DOI: 10.1016/j.parepi.2025.e00439
Dewi Suhika , Roberd Saragih , Dewi Handayani , Mochamad Apri
Managing infectious disease transmission in high-mobility regions is a critical challenge due to dynamic population interactions and elevated transmission risks. This study develops a stochastic epidemiological model to simulate disease spread between two densely populated provinces in Indonesia, Jakarta and West Java. A robust sliding mode control (SMC) framework is proposed and integrated with an Extended Kalman Filter (EKF) to estimate key epidemiological parameters in real time using limited observable data. The proposed framework functions as a theoretical and simulation-based tool to evaluate the potential effects of vaccination and isolation strategies. Although full-state variables are not directly measurable in practice, the EKF allows for the estimation of unobservable parameters, thereby enabling control analysis under uncertainty. Simulation results demonstrate that the SMC strategy significantly reduces infection levels in both provinces, achieving reductions of 84.45 % and 63.94 % in Jakarta, and 98.83 % and 58.35 % in West Java, for the original and Omicron variants, respectively. By incorporating stochasticity, the model captures natural fluctuations and mismatched uncertainties in epidemic progression. This work contributes a conceptual control framework that integrates EKF and SMC for managing stochastic epidemic systems. While the approach is not directly implementable for real-time policymaking, it offers valuable insight into disease dynamics and the potential impact of control strategies under limited observability. These findings support the use of data-driven control simulations for scenario evaluation and policy guidance in complex, uncertain epidemic settings.
由于人口动态互动和传播风险增加,在高流动性地区管理传染病传播是一项重大挑战。本研究开发了一个随机流行病学模型来模拟印度尼西亚雅加达和西爪哇两个人口稠密省份之间的疾病传播。提出了一种鲁棒滑模控制框架,并将其与扩展卡尔曼滤波(EKF)相结合,利用有限的可观测数据实时估计关键的流行病学参数。该框架作为一种基于理论和模拟的工具来评估疫苗接种和隔离策略的潜在影响。虽然在实践中不能直接测量全状态变量,但EKF允许估计不可观测参数,从而实现不确定性下的控制分析。模拟结果表明,SMC策略显著降低了两省的感染水平,雅加达的原始和Omicron变体分别减少了84.45%和63.94%,西爪哇分别减少了98.83%和58.35%。通过纳入随机性,该模型捕获了流行病进展中的自然波动和不匹配的不确定性。这项工作为管理随机流行病系统提供了一个整合EKF和SMC的概念控制框架。虽然该方法不能直接用于实时决策,但它提供了对疾病动态和在有限可观测性下控制策略的潜在影响的宝贵见解。这些发现支持在复杂、不确定的流行病环境中使用数据驱动的控制模拟进行情景评估和政策指导。
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引用次数: 0
Prevalence and associated factors of malaria among febrile patients at two sites with different transmission intensities, Northwest Ethiopia 埃塞俄比亚西北部两个不同传播强度地点发热患者疟疾流行情况及相关因素
IF 2 Q3 INFECTIOUS DISEASES Pub Date : 2025-06-16 DOI: 10.1016/j.parepi.2025.e00441
Abebaw Setegn, Yalewayker Tegegne, Ligabaw Worku, Ayalew Jejaw Zeleke

Background

Malaria is the most prevalent and deadly mosquito-borne disease worldwide. In Ethiopia, Plasmodium falciparum and Plasmodium vivax coexist, adding to the country's malaria burden. Assessing the prevalence of malaria and identifying the factors linked to its transmission are essential strategies for effective prevention and control.

Objectives

To determine the prevalence and associated factors of malaria among febrile patients at two sites with different transmission intensities.

Methods

An institution-based comparative cross-sectional study was conducted from April to May 2021. The sample size was determined using the double population proportion formula, and participants were selected through a convenient sampling technique in which study participants were selected based on their easy convenience or willingness to participate until the expected sample size was obtained. Malaria diagnosis was performed via Geimsa-based microscopy. Data entry was performed using EpiData version 4.6.0, and analysis was carried out using Statistical Package for the Social Sciences (SPSS) version 20. Bivariate and multivariate analyses were conducted to identify factors associated with malaria, with a p-value <0.05 considered statistically significant. Additionally, the difference in malaria prevalence between the two study areas was assessed using the chi-square test.

Results

Among the 528 study participants, the overall malaria prevalence was 16.1 % (85/528). Specifically, the prevalence was 13.6 % (36/264) at Maksegnit Health Center and 18.6 % (49/264) at Sanja Health Center. The difference in malaria prevalence between the two study sites was not statistically significant (p > 0.05). In Maksegnit Health Center, malaria prevalence was significantly associated with the age groups 6–14 years: 16.09 (2.65–37.80) and 15–24 years: 8.21 (2.74–20.98), as well as rural residence 14.25 (3.13–44.86). In Sanja Health Center, significant associations were observed with the age group 15–24 years: 8.21 (2.74–20.98), lack of bed net availability: 11.84 (3.36–41.66), and recent travel history: 5.58 (1.32–23.70).

Conclusion

This study revealed that malaria prevalence was moderately high in both study areas, with no statistically significant difference between the two sites. However, unique factors were associated with malaria prevalence in each location. These findings underscore the importance of targeted interventions to address area-specific risk factors, such as improving bed net distribution, enhancing housing conditions, and eliminating mosquito-breeding sites.
疟疾是世界上最流行和最致命的蚊媒疾病。在埃塞俄比亚,恶性疟原虫和间日疟原虫共存,增加了该国的疟疾负担。评估疟疾流行情况和确定与疟疾传播有关的因素是有效预防和控制的基本战略。目的了解不同传播强度地区发热患者疟疾流行情况及相关因素。方法于2021年4 - 5月进行了一项基于机构的比较横断面研究。样本量采用双总体比例公式确定,参与者的选择采用方便抽样技术,即根据研究参与者的方便程度或参与意愿进行选择,直至获得预期样本量。通过基于geimsa的显微镜进行疟疾诊断。使用EpiData 4.6.0版本进行数据录入,使用SPSS 20版本进行分析。进行双变量和多变量分析以确定与疟疾相关的因素,p值<;0.05被认为具有统计学意义。此外,使用卡方检验评估了两个研究区域之间疟疾流行率的差异。结果528名研究对象中,疟疾总患病率为16.1%(85/528)。具体而言,Maksegnit保健中心的患病率为13.6% (36/264),Sanja保健中心的患病率为18.6%(49/264)。两个研究地点的疟疾患病率差异无统计学意义(p >;0.05)。在Maksegnit保健中心,疟疾患病率与6-14岁年龄组(16.09(2.65-37.80))和15-24岁年龄组(8.21(2.74-20.98))以及农村居民(14.25(3.13-44.86))显著相关。在Sanja卫生中心,15-24岁年龄组有显著相关性:8.21(2.74-20.98),缺少蚊帐:11.84(3.36-41.66),近期旅行史:5.58(1.32-23.70)。结论两个研究区疟疾流行率均为中高水平,差异无统计学意义。然而,与每个地点的疟疾流行有关的独特因素。这些发现强调了有针对性的干预措施的重要性,以解决特定地区的风险因素,如改善蚊帐分发、改善住房条件和消除蚊子滋生场所。
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引用次数: 0
Asymptomatic/submicroscopic Plasmodium vivax infection: A systematic review and META-analysis on the hidden challenge for preventing re-establishment of malaria transmission 无症状/亚显微间日疟原虫感染:预防疟疾传播重新建立的潜在挑战的系统综述和meta分析
IF 2 Q3 INFECTIOUS DISEASES Pub Date : 2025-06-15 DOI: 10.1016/j.parepi.2025.e00442
Siqi Wang, He Yan, Li Zhang, Zhigui Xia, Jianhai Yin

Background

Plasmodium vivax is not only the second most prevalent cause of malaria worldwide, but also the second leading cause of imported malaria in China. This poses a significant threat to preventing the re-establishment of malaria transmission, as the competent vector (Anopheles sinensis) suitable for vivax malaria transmission is widely distributed in China. Particularly, the asymptomatic P. vivax infection as another important source of infection deserves further study, but it is rarely reported.

Methods

PubMed, CNKI and Wanfang databases were systematically searched for asymptomatic P. vivax infection relevant studies published between February 2014 and February 2024. I-squared statistics (I2) was used to assess heterogeneity among included studies. The pooled prevalence and pooled odds ratio and their corresponding 95 % Confidence Interval were estimated using the random effects model in Review Manager 5.4 software.

Results

Seventy-one eligible studies were included in this analysis. Both study countries (P < 0.001, I2 = 95 %) and diagnostic methods (P = 0.001, I2 = 95 %) were the source of heterogeneity. The rates of asymptomatic malaria infection detected by the gold standard method of microscopy in the countries from Africa, Asia, Oceania and Americas were 9.2 %, 4.8 %, 15.6 % and 14.5 %, respectively. And the corresponding rates of asymptomatic P. vivax infection were 4.0 %, 2.1 %, 10.6 % and 13.0 %. In terms of diagnostic methods, the rate of asymptomatic P. vivax infection (5.6 %) detected by polymerase chain reaction in the population was the highest (P < 0.001).

Conclusion

According to the asymptomatic P. vivax infection worldwide, the countries with the higher rate of asymptomatic infection are the main source of vivax malaria cases imported into China, which indicates a potentially higher potential risk of importation of asymptomatic P. vivax infection. Therefore, it is necessary to develop more sensitive, easier to operate, and more cost-effective techniques to detect and screen asymptomatic malaria infections in a timely manner, so as to prevent re-establishment of malaria transmission.
间日疟原虫是全球第二大疟疾流行病因,也是中国输入性疟疾的第二大病因。由于适合间日疟疾传播的中华按蚊(Anopheles sinensis)在中国广泛分布,这对预防疟疾传播的重新建立构成了重大威胁。特别是无症状间日疟原虫感染作为另一重要感染源值得进一步研究,但鲜有报道。方法系统检索spubmed、中国知网和万方数据库2014年2月至2024年2月发表的无症状间日疟原虫感染相关研究。采用i平方统计(I2)来评估纳入研究之间的异质性。使用Review Manager 5.4软件中的随机效应模型估计合并患病率和合并优势比及其相应的95%置信区间。结果纳入71项符合条件的研究。两个研究国家(P <;0.001, I2 = 95%)和诊断方法(P = 0.001, I2 = 95%)是异质性的来源。非洲、亚洲、大洋洲和美洲国家显微镜金标准法无症状疟疾检出率分别为9.2%、4.8%、15.6%和14.5%。无症状间日疟原虫感染率分别为4.0%、2.1%、10.6%和13.0%。从诊断方法上看,人群中无症状间日疟原虫感染率以聚合酶链反应检出率(5.6%)最高(P <;0.001)。结论从全球无症状间日疟感染情况来看,无症状感染率较高的国家是中国输入性间日疟病例的主要来源,提示无症状间日疟输入的潜在风险较高。因此,有必要开发更灵敏、更易于操作、更具成本效益的技术,及时发现和筛查无症状疟疾感染,以防止疟疾传播的重新建立。
{"title":"Asymptomatic/submicroscopic Plasmodium vivax infection: A systematic review and META-analysis on the hidden challenge for preventing re-establishment of malaria transmission","authors":"Siqi Wang,&nbsp;He Yan,&nbsp;Li Zhang,&nbsp;Zhigui Xia,&nbsp;Jianhai Yin","doi":"10.1016/j.parepi.2025.e00442","DOIUrl":"10.1016/j.parepi.2025.e00442","url":null,"abstract":"<div><h3>Background</h3><div><em>Plasmodium vivax</em> is not only the second most prevalent cause of malaria worldwide, but also the second leading cause of imported malaria in China. This poses a significant threat to preventing the re-establishment of malaria transmission, as the competent vector (<em>Anopheles sinensis</em>) suitable for <em>vivax</em> malaria transmission is widely distributed in China. Particularly, the asymptomatic <em>P. vivax</em> infection as another important source of infection deserves further study, but it is rarely reported.</div></div><div><h3>Methods</h3><div>PubMed, CNKI and Wanfang databases were systematically searched for asymptomatic <em>P. vivax</em> infection relevant studies published between February 2014 and February 2024. I-squared statistics (<em>I</em><sup>2</sup>) was used to assess heterogeneity among included studies. The pooled prevalence and pooled odds ratio and their corresponding 95 % Confidence Interval were estimated using the random effects model in Review Manager 5.4 software.</div></div><div><h3>Results</h3><div>Seventy-one eligible studies were included in this analysis. Both study countries (<em>P</em> &lt; 0.001, <em>I</em><sup>2</sup> = 95 %) and diagnostic methods (<em>P</em> = 0.001, <em>I</em><sup>2</sup> = 95 %) were the source of heterogeneity. The rates of asymptomatic malaria infection detected by the gold standard method of microscopy in the countries from Africa, Asia, Oceania and Americas were 9.2 %, 4.8 %, 15.6 % and 14.5 %, respectively. And the corresponding rates of asymptomatic <em>P. vivax</em> infection were 4.0 %, 2.1 %, 10.6 % and 13.0 %. In terms of diagnostic methods, the rate of asymptomatic <em>P. vivax</em> infection (5.6 %) detected by polymerase chain reaction in the population was the highest (<em>P</em> &lt; 0.001).</div></div><div><h3>Conclusion</h3><div>According to the asymptomatic <em>P. vivax</em> infection worldwide, the countries with the higher rate of asymptomatic infection are the main source of <em>vivax</em> malaria cases imported into China, which indicates a potentially higher potential risk of importation of asymptomatic <em>P. vivax</em> infection. Therefore, it is necessary to develop more sensitive, easier to operate, and more cost-effective techniques to detect and screen asymptomatic malaria infections in a timely manner, so as to prevent re-establishment of malaria transmission.</div></div>","PeriodicalId":37873,"journal":{"name":"Parasite Epidemiology and Control","volume":"30 ","pages":"Article e00442"},"PeriodicalIF":2.0,"publicationDate":"2025-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144307051","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}
引用次数: 0
High efficacy of camphene and metronidazole combination therapy against Giardia lamblia infection in mice 康芬与甲硝唑联合治疗小鼠兰氏贾第鞭毛虫感染的疗效观察
IF 2 Q3 INFECTIOUS DISEASES Pub Date : 2025-06-11 DOI: 10.1016/j.parepi.2025.e00440
Marwa Sami Alwan, Hussam Saeed Al-Aredhi, Ikhlas Abbas Marhoon
Although synthetic antigiardial medications frequently exhibit efficacy, they may also result in negative side effects. Furthermore, issues related to drug resistance and the potential for mutagenic effects have been highlighted. The current research seeks to assess the combined anti-giardial efficacy of camphene (CP) both independently and in conjunction with metronidazole (MNZ) in the context of Giardia lamblia infection. The in vitro effectiveness of CP, both as alone treatment and in conjunction with MNZ, was assessed for its anti-giardial properties against both cysts and trophozoites of G. lamblia using a cell viability assay. Additionally, the effects of CP (100 mg/kg and 200 mg/kg), both alone and in combination with MNZ (5 mg/kg), were investigated. This assessment focused on the load and viability of cysts, serum electrolyte levels, adaptive-response cytokines (Interleukin-1 (IL-1) and IFN-γ), as well as the expression levels of apoptosis-related genes encoding the enzymes caspase-3, −8, and − 9. Both CP and the combination of CP with MNZ markedly increased the mortality of cyst and trophozoites (p < 0.001); indicating the existence of synergistic interactions when CP is co-administered with MNZ. CP alone and in the combination with MNZ significantly enhanced reactive oxygen species (ROS) production, while, downregulated the expression of the nicotinamide adenine dinucleotide oxidase (NADH), peroxiredoxin1a (PXR1a), and superoxide reductase (SOR) genes in G. lamblia trophozoites following (p < 0.001). By in vivo, the load and the viability of G. lamblia cysts excreted from the feces of infected mice, significantly modulated the serum electrolytes (p < 0.001), increased the serum levels of the cytokines IL-17 and IFN-γ (p < 0.001), and reduced the caspase-3, −8, and − 9 gene expression following a seven-day treatment with CP and CP + MNZ. Recent research has revealed hopeful effects of CP alone, particularly its synergistic interactions with MNZ against G. lamblia infection. Nevertheless, additional investigation is necessary to make clear the specific mechanisms and to evaluate its effectiveness in clinical trials, which could enhance the application of CP in the treatment and management of giardiasis.
虽然合成抗心绞痛药物经常表现出疗效,但它们也可能导致负面副作用。此外,还强调了与耐药性和潜在的致突变效应有关的问题。目前的研究旨在评估在贾第鞭毛虫感染的情况下,camphene (CP)单独使用和与甲硝唑(MNZ)联合使用的抗贾第鞭毛虫的疗效。通过细胞活力测定,评估了CP单独治疗和与MNZ联合治疗的体外有效性,以评估其对兰氏螺旋体囊肿和滋养体的抗gi心包特性。此外,研究了CP (100 mg/kg和200 mg/kg)单独使用和与MNZ (5 mg/kg)联合使用的效果。这项评估的重点是囊肿的负荷和活力、血清电解质水平、适应性反应细胞因子(白介素-1 (IL-1)和IFN-γ),以及编码caspase-3、- 8和- 9酶的凋亡相关基因的表达水平。CP和CP与MNZ联合使用均显著提高了囊体和滋养体的死亡率(p <;0.001);表明CP与MNZ联合使用时存在协同作用。CP单用及与MNZ联用均显著提高了蓝氏滋养体中活性氧(ROS)的产生,同时下调了烟酰胺腺嘌呤二核苷酸氧化酶(NADH)、过氧化物还原酶1a (PXR1a)和超氧化物还原酶(SOR)基因的表达。0.001)。在体内,感染小鼠粪便中排泄的兰氏螺旋体囊的负荷和活力显著调节了血清电解质(p <;0.001),血清中细胞因子IL-17和IFN-γ水平升高(p <;0.001),并在CP和CP + MNZ治疗7天后降低caspase-3、- 8和- 9基因表达。最近的研究揭示了单独使用CP的有希望的效果,特别是它与MNZ的协同相互作用对抗G. lambla感染。然而,需要进一步的研究来明确其具体机制,并在临床试验中评估其有效性,以加强CP在贾第虫病治疗和管理中的应用。
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引用次数: 0
Comprehensive review of Wolbachia research (1936–2024): Global landscape, mapping progress and themes 沃尔巴克氏体研究的综合回顾(1936-2024):全球景观,制图进展和主题
IF 2 Q3 INFECTIOUS DISEASES Pub Date : 2025-06-10 DOI: 10.1016/j.parepi.2025.e00438
Manal Mohamed Elhassan Taha , Siddig Ibrahim Abdelwahab , Hafeez Yagoub Mohamed , Ahmed Jerah , Aied M. Alabsi , Saleh Mohammad Abdullah , Bassem Oraibi , Hassan Ahmad Alfaifi , Yasir Osman Hassan Babiker , Ibrahim Abdel Aziz Ibrahim , Saeed Alshahrani , Abdullah Mohammed Farasani , Ahmed S. Alamer , Tawfeeq Altherwi
Wolbachia, an obligatory gram-negative intracellular bacterium associated with Rickettsia, was initially identified in Culex pipiens mosquitoes and later in diverse invertebrates. This study utilizes bibliometric methodologies to quantitatively analyze Wolbachia research (WR), filling a gap in systematic analysis. Following PRISMA guidelines, original English papers were extracted from Scopus and analyzed using VOSViewer and Bibliometrix to assess performance indices, citations, co-word mapping, emerging themes, and the evolution of WR. Since its inception between 1936 and 1961, WR has grown to 4800 documents by 2024, with notable surges in 2022 and 2024. Scholars like O'Neill, Hoffmann, and Bourtzis have significantly influenced this field. Bradford's law highlights WR distribution among 876 sources, with 37.54 % of studies being collaborative. Six thematic areas have evolved toward practical applications, particularly in vector control and disease management. Emerging topics since 2015, such as “cytoplasmic incompatibility” and “arboviruses,” reflect growing interest in microbiology and disease control.
沃尔巴克氏体是一种与立克次体相关的强制性革兰氏阴性细胞内细菌,最初在库蚊中发现,后来在多种无脊椎动物中发现。本研究利用文献计量学方法对沃尔巴克氏体研究(WR)进行定量分析,填补了系统分析的空白。按照PRISMA的指导方针,从Scopus中提取英文原始论文,并使用VOSViewer和Bibliometrix对其进行分析,以评估绩效指标、引文、共词映射、新兴主题和WR的演变。自1936年至1961年成立以来,WR到2024年已增长到4800份文件,2022年和2024年有显著增长。奥尼尔、霍夫曼和布尔齐斯等学者对这一领域产生了重大影响。Bradford定律强调了876个来源中的WR分布,其中37.54%的研究是合作的。六个专题领域已发展到实际应用,特别是在病媒控制和疾病管理方面。自2015年以来出现的新主题,如“细胞质不相容”和“虫媒病毒”,反映了人们对微生物学和疾病控制的兴趣日益浓厚。
{"title":"Comprehensive review of Wolbachia research (1936–2024): Global landscape, mapping progress and themes","authors":"Manal Mohamed Elhassan Taha ,&nbsp;Siddig Ibrahim Abdelwahab ,&nbsp;Hafeez Yagoub Mohamed ,&nbsp;Ahmed Jerah ,&nbsp;Aied M. Alabsi ,&nbsp;Saleh Mohammad Abdullah ,&nbsp;Bassem Oraibi ,&nbsp;Hassan Ahmad Alfaifi ,&nbsp;Yasir Osman Hassan Babiker ,&nbsp;Ibrahim Abdel Aziz Ibrahim ,&nbsp;Saeed Alshahrani ,&nbsp;Abdullah Mohammed Farasani ,&nbsp;Ahmed S. Alamer ,&nbsp;Tawfeeq Altherwi","doi":"10.1016/j.parepi.2025.e00438","DOIUrl":"10.1016/j.parepi.2025.e00438","url":null,"abstract":"<div><div><em>Wolbachia</em>, an obligatory gram-negative intracellular bacterium associated with <em>Rickettsia</em>, was initially identified in <em>Culex pipiens</em> mosquitoes and later in diverse invertebrates. This study utilizes bibliometric methodologies to quantitatively analyze <em>Wolbachia</em> research (WR), filling a gap in systematic analysis. Following PRISMA guidelines, original English papers were extracted from Scopus and analyzed using VOSViewer and Bibliometrix to assess performance indices, citations, co-word mapping, emerging themes, and the evolution of WR. Since its inception between 1936 and 1961, WR has grown to 4800 documents by 2024, with notable surges in 2022 and 2024. Scholars like O'Neill, Hoffmann, and Bourtzis have significantly influenced this field. Bradford's law highlights WR distribution among 876 sources, with 37.54 % of studies being collaborative. Six thematic areas have evolved toward practical applications, particularly in vector control and disease management. Emerging topics since 2015, such as “cytoplasmic incompatibility” and “arboviruses,” reflect growing interest in microbiology and disease control.</div></div>","PeriodicalId":37873,"journal":{"name":"Parasite Epidemiology and Control","volume":"30 ","pages":"Article e00438"},"PeriodicalIF":2.0,"publicationDate":"2025-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144365107","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}
引用次数: 0
Distribution of Rhipicephalus microplus and Hyalomma lusitanicum, and the pathogens they are carrying: A systematic review 微头虫和卢西坦透明瘤的分布及其所携带的病原体:系统综述
IF 2 Q3 INFECTIOUS DISEASES Pub Date : 2025-06-04 DOI: 10.1016/j.parepi.2025.e00437
Afito Luciano , Binta J.J. Jallow , Mandie Liu , Yuting Ma , Regina Daniel Miambo , Fanming Meng
Rhipicephalus microplus and Hyalomma lusitanicum are highly adaptable ectoparasites that feed on vertebrates, including people and both domestic and wild animals. This systematic review aims to identify, compile, and evaluate relevant articles published after January 1, 2000, until April 30, 2024, from several scientific databases documenting the distribution or prevalence of Rh. microplus and/or Hy. lusitanicum, as well as tick-borne pathogens globally. We conducted a thorough search in Embase, Ovid MEDLINE, ScienceDirect, Web of Science, and Scopus from January 1, 2000, to April 30, 2024. This systematic review was implemented according to PRISMA 2020 guidelines. Of the 223 studies included in this systematic review, 83.0 % detected Rh. microplus, reported across 42 countries. In contrast, 17.0 % detected Hy. lusitanicum, which has only been reported in eight countries. A total of 113 studies included in this systematic review reported the presence of tick-borne pathogens, with 78.8 % focused on Rh. microplus and 21.2 % addressing Hy. lusitanicum. In this review, 94 tick-borne pathogens were reported. Of the tick-borne pathogens identified in Rh. microplus, bacteria were the most reported, representing 71.6 %, followed by viruses with 15.1 %. Among bacteria, the genus Anaplasma was the most frequent, with 26.8 %, followed by Rickettsia, with 17.2 %. The tick-borne pathogens identified in Hy. lusitanicum, bacteria were the most frequent, with 68.1 %, followed by protozoa, with 21.3 %. Genus Rickettsia was the most frequent among bacteria, with 25.5 %, followed by Anaplasma with 19.2 %. This systematic review provided insight crucial for managing and controlling tick-borne diseases by integrating the One Health approach.
微尖鼻虫和卢西坦透明虫是适应性很强的外寄生虫,以脊椎动物为食,包括人、家畜和野生动物。本系统综述旨在识别、汇编和评估2000年1月1日至2024年4月30日期间发表的相关文章,这些文章来自几个记录Rh分布或流行情况的科学数据库。微加菌和/或lusitanicum,以及全球蜱传病原体。我们从2000年1月1日至2024年4月30日在Embase、Ovid MEDLINE、ScienceDirect、Web of Science和Scopus中进行了全面的检索。该系统评价是根据PRISMA 2020指南实施的。在本系统综述纳入的223项研究中,83.0%检测到Rh。Microplus在42个国家进行了报告。相比之下,17.0%的人检出了lusitanicum,这只在8个国家报告过。本系统综述中共有113项研究报告了蜱传病原体的存在,其中78.8%集中在Rh。微加和21.2%的寻址海西坦。本文报道了94种蜱传病原体。在Rh中发现的蜱传病原体。Microplus中细菌最多,占71.6%,其次是病毒,占15.1%。细菌中以无原体属最多,占26.8%,其次为立克次体,占17.2%。蜱传病原菌以细菌最多,占68.1%,其次是原生动物,占21.3%。细菌中以立克次体最多,占25.5%,其次是无形体,占19.2%。这一系统综述通过整合“同一个健康”方法,为管理和控制蜱传疾病提供了至关重要的见解。
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引用次数: 0
Toxoplasma gondii seroprevalence in domestic sheep in the Faroe Islands 法罗群岛家羊刚地弓形虫血清流行率
IF 2 Q3 INFECTIOUS DISEASES Pub Date : 2025-05-30 DOI: 10.1016/j.parepi.2025.e00436
Eyðfinn Magnussen , Bergur Hanusson , Pikka Jokelainen , Sunnvør í Kongsstovu
Little has been known about the zoonotic parasite Toxoplasma gondii in the remote isolated archipelago of the Faroe Islands. This study was conducted to estimate T. gondii seroprevalence in domestic sheep in the Faroe Islands. We tested samples from 122 sheep slaughtered for human consumption in October 2021 for presence of antibodies against the parasite using a commercial multi-species ELISA. The sheep originated from 14 land lots across the Faroe Islands. Four sheep were seropositive for T. gondii, corresponding to a seroprevalence estimate of 3.3 %. All four seropositive sheep were adult ewes; the seroprevalence estimate among adult ewes was 19.0 %. At least one seropositive sheep was found from three of the 14 land lots (21.4 %). All seropositive sheep were adult ewes, suggesting acquired infections from oocysts. The infections occurred in three distant out-fields, indicating multifocal environmental oocyst contamination.
在偏僻的法罗群岛,人们对人畜共患寄生虫刚地弓形虫知之甚少。本研究旨在估计法罗群岛家羊中弓形虫的血清流行率。我们使用商业多物种ELISA检测了2021年10月屠宰供人食用的122只羊的样本中是否存在针对该寄生虫的抗体。这些羊来自法罗群岛的14块土地。4只羊的弓形虫血清检测呈阳性,血清阳性率估计为3.3%。4只血清阳性羊均为成年母羊;成年母羊血清阳性率估计为19.0%。14块土地中的3块(21.4%)至少发现1只血清阳性羊。所有血清阳性的羊均为成年母羊,提示从卵囊获得感染。感染发生在三个较远的外场,提示多灶性环境卵囊污染。
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引用次数: 0
Prevalence of Toxoplasma gondii antibodies among waste collectors in Kuwait 科威特垃圾收集者中弓形虫抗体的流行情况
IF 2 Q3 INFECTIOUS DISEASES Pub Date : 2025-05-29 DOI: 10.1016/j.parepi.2025.e00431
Anfal Yousef

Background

Toxoplasmosis is a parasitic disease with a global burden, particularly affecting pregnant women, neonates and immunosuppressed individuals. Latent toxoplasmosis has also been associated with neuropsychological disorders in immunocompetent individuals. In Kuwait, the unregulated presence of stray cats in residential areas may contribute to toxoplasmosis spread within the community. The targeted population of this study were waste cleaners, a potentially higher risk group in the community. The aim of the study was to estimate the seroprevalence of Toxoplasma gondii among waste collectors across two governorates of Kuwait – Kuwait City and Jahra.

Method

Blood samples were collected from 201 waste workers from two different cities: 53 and 148 workers from Kuwait City Governorate and Jahra Governorate, respectively. These samples were analysed to determine the seroprevalence of T. gondii antibodies (IgM and IgG) and IgG avidity using a chemiluminescence immunoassay.

Results

The findings revealed that a total of 1 % and 21 % of waste workers had T. gondii IgM and IgG antibodies in their sera, respectively. Furthermore, 26 % of seropositive workers exhibited high avidity, indicating that infections were likely not recent. Almost half of seropositive workers (49 %) demonstrated low IgG avidity.

Conclusion

Recent travel history, age, or nationality were not statistically significant factors in determining seropositivity. The results of this study highlight the widespread presence in waste workers, where one in five was seropositive for T. gondii with no significant differences in both cities. Our findings emphasise the need for implementing preventive measures within a One Health framework to control the spread of toxoplasmosis in the environment, the food industry and the community.
弓形虫病是一种全球性寄生虫病,尤其影响孕妇、新生儿和免疫抑制个体。潜伏弓形虫病也与免疫正常个体的神经心理障碍有关。在科威特,居民区不受管制的流浪猫可能导致弓形虫病在社区内传播。本研究的目标人群是垃圾清洁工,这是社区中潜在的高风险群体。该研究的目的是估计科威特两个省(科威特市和Jahra)的废物收集者中刚地弓形虫的血清流行率。方法采集来自科威特省和贾赫拉省的201名废物处理工人的血液样本,分别为53名和148名。对这些样本进行分析,用化学发光免疫分析法测定血清中弓形虫抗体(IgM和IgG)的阳性率和IgG的贪婪度。结果废弃物工人血清中弓形虫IgM抗体阳性率为1%,IgG抗体阳性率为21%。此外,26%的血清学阳性工人表现出高发病率,表明感染可能不是最近发生的。几乎一半的血清阳性工人(49%)表现出低IgG亲和力。结论近期旅行史、年龄、国籍对确定血清阳性无统计学意义。这项研究的结果强调了在垃圾工人中广泛存在的弓形虫,其中五分之一的人血清弓形虫呈阳性,在两个城市中没有显著差异。我们的研究结果强调需要在“同一个健康”框架内实施预防措施,以控制弓形虫病在环境、食品工业和社区中的传播。
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引用次数: 0
期刊
Parasite Epidemiology and Control
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