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Environmental detection of eumycetoma pathogens using multiplex real-time PCR for soil DNA in Sennar State, Sudan. 利用苏丹森纳尔州土壤 DNA 的多重实时 PCR 技术,对埃米克特瘤病原体进行环境检测。
IF 4.5
Tropical Medicine and Health Pub Date : 2023-12-19 DOI: 10.1186/s41182-023-00563-3
Hiroki Hashizume, Suguru Taga, Masayuki K Sakata, Mahmoud Hussein, Emmanuel Edwar Siddig, Toshifumi Minamoto, Ahmed Hassan Fahal, Satoshi Kaneko
{"title":"Environmental detection of eumycetoma pathogens using multiplex real-time PCR for soil DNA in Sennar State, Sudan.","authors":"Hiroki Hashizume, Suguru Taga, Masayuki K Sakata, Mahmoud Hussein, Emmanuel Edwar Siddig, Toshifumi Minamoto, Ahmed Hassan Fahal, Satoshi Kaneko","doi":"10.1186/s41182-023-00563-3","DOIUrl":"10.1186/s41182-023-00563-3","url":null,"abstract":"<p><strong>Background: </strong>Mycetoma is a chronic disease affecting the skin and subcutaneous tissue endemic in the tropical and subtropical regions. Several bacteria and fungi can cause mycetoma, but fungal mycetoma (eumycetoma) is challenging because the treatment requires a combination of a long-term antifungal agent and surgery. Although the transmission route has not yet been elucidated, infection from the soil is a leading hypothesis. However, there are few soil investigation studies, and the geographical distribution of mycetoma pathogens is not well documented. Here, we used multiplex real-time PCR technology to identify three fungal species from soil samples.</p><p><strong>Methods: </strong>In total, 64 DNA samples were extracted from soil collected in seven villages in an endemic area in Sennar State, Sudan, in 2019. Primers and fluorescent probes specifically targeting the ribosomal DNA of Madurella mycetomatis, Falciformispora senegalensis, and F. tompkinsii were designed.</p><p><strong>Results: </strong>Multiplex real-time PCR was performed and identified the major pathogen, M. mycetomatis that existed in most sites (95%). In addition, two other pathogens were identified from some sites. This is the first report on the use of this technique for identifying the eumycetoma causative microorganisms.</p><p><strong>Conclusions: </strong>This study demonstrated that soil DNA investigation can elucidate the risk area of mycetoma-causative agents. The results will contribute to the design of prevention measures, and further large-scale studies may be effective in understanding the natural habitats of mycetoma pathogens.</p>","PeriodicalId":23311,"journal":{"name":"Tropical Medicine and Health","volume":null,"pages":null},"PeriodicalIF":4.5,"publicationDate":"2023-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10729560/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138809179","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}
引用次数: 0
Vaccine inequity: a threat to Africa's recovery from COVID-19. 疫苗不公平:对非洲从 COVID-19 中恢复的威胁。
IF 3.6
Tropical Medicine and Health Pub Date : 2023-12-19 DOI: 10.1186/s41182-023-00564-2
Calvin R Wei, Samuel Kamande, Godwin C Lang'at
{"title":"Vaccine inequity: a threat to Africa's recovery from COVID-19.","authors":"Calvin R Wei, Samuel Kamande, Godwin C Lang'at","doi":"10.1186/s41182-023-00564-2","DOIUrl":"10.1186/s41182-023-00564-2","url":null,"abstract":"<p><strong>Background: </strong>Vaccine inequity is a reality facing the Sub-Saharan Africa region as vaccine nationalism from high-income countries (HICs) leads to limited access to the lifesaving vaccines needed to end the pandemic. In Africa, a significant portion of the population has yet to be vaccinated against Covid-19; however, the barriers to accessing such vaccines, including capacity challenges, still persist despite the implementation of the COVAX facility meant to support the lower- and middle-income countries (LMICs) to boost vaccination.</p><p><strong>Methods: </strong>This study involved a systemic narrative review where literature search was conducted using the NCBI's PMC and BMC databases based on defined keywords. Three authors were involved in the literature search and consensus was applied to settle disagreements and validate the findings.</p><p><strong>Results: </strong>In this systematic narrative review, we report that vaccine nationalism remains a challenge for LMICs as HICs still hoard vaccines and even bypass COVAX to procure doses directly from the manufacturers. Factors that promote vaccine hesitancy in Africa include misinformation regarding the Covid-19 vaccine, a lack of trust in politicians and the pharmaceutical industry, and concerns about vaccine safety and efficacy. The policies implemented to enhance vaccine coverage in Africa, such as mandates, community engagement, and partnerships, all seek to promote equity of vaccination and ending Covid-19.</p><p><strong>Conclusion: </strong>Covid-19 vaccine inequity persists and contributes to prolonged pandemic in LMICs. In response, African governments have taken certain measures to enhance vaccine uptake but more needs to be done to address resistance to vaccines.</p>","PeriodicalId":23311,"journal":{"name":"Tropical Medicine and Health","volume":null,"pages":null},"PeriodicalIF":3.6,"publicationDate":"2023-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10729430/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138809180","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}
引用次数: 0
Characterizing deaths among adult patients with severe acute respiratory infection: during the pre- and COVID-19 pandemic periods in Bangladesh, 2018-2022. 严重急性呼吸道感染成年患者的死亡特征:2018-2022年孟加拉国COVID-19大流行前和COVID-19大流行期间。
IF 3.6
Tropical Medicine and Health Pub Date : 2023-12-19 DOI: 10.1186/s41182-023-00565-1
Md Zakiul Hassan, Md Ariful Islam, Homayra Rahman Shoshi, Md Kamal Hossain, Tahmina Shirin, Fahmida Chowdhury
{"title":"Characterizing deaths among adult patients with severe acute respiratory infection: during the pre- and COVID-19 pandemic periods in Bangladesh, 2018-2022.","authors":"Md Zakiul Hassan, Md Ariful Islam, Homayra Rahman Shoshi, Md Kamal Hossain, Tahmina Shirin, Fahmida Chowdhury","doi":"10.1186/s41182-023-00565-1","DOIUrl":"10.1186/s41182-023-00565-1","url":null,"abstract":"<p><strong>Background: </strong>Severe acute respiratory infection (SARI) is a leading cause of mortality globally, peaking during the COVID-19 pandemic. We analyzed SARI-associated deaths during the pre-and-pandemic periods in Bangladesh to identify the contributing factors.</p><p><strong>Methods: </strong>We analyzed data from hospital-based influenza surveillance at nine tertiary-level hospitals in Bangladesh. We considered March 2018-February 2020 as the pre-pandemic period and March 2020-February 2022 as the pandemic period and included adult (≥ 18 years) participants in our study. Surveillance physicians identified WHO-SARI case definition meeting inpatients and collected demographics, clinical characteristics, and outcomes at hospital discharge and 30 days post-discharge. We performed rRT-PCR for influenza and SARS-CoV-2 viruses on collected nasopharyngeal and oropharyngeal swabs. We used multivariable Cox's regression models to calculate the hazard ratio (HR) for factors associated with SARI deaths in these adult patients.</p><p><strong>Results: </strong>We enrolled 4392 SARI patients during the pre-pandemic and 3824 SARI patients during the pandemic period. Case fatality ratio was higher during the pandemic: 13.62% (521) [in-hospital: 6.45% (247); post-discharge: 7.17% (274)] compared to pre-pandemic, 6.01% (264) [in-hospital: 2.01% (89), post-discharge: 4% (175)] (p < 0.001). Pre-pandemic, influenza was detected in 14% (37/264) of SARI deaths. Influenza was detected during the pandemic in 2.3% (12/521), SARS-CoV-2 in 41.8% (218/521), and both viruses in only one SARI death. History of smoking and the presence of 1 or more co-morbid conditions independently attributed to SARI deaths in adults in the pre-pandemic period. SARI deaths in such patients were also associated with respiratory difficulties on admission in both pre-pandemic (aHR 2.36; 95% CI:1.65-3.36) and pandemic period (aHR 2.30; 95% CI: 1.57-3.35) after accounting for age, sex, smoking status, presence of 1 or more co-morbid conditions, and detection of influenza and SARS-CoV-2 viruses.</p><p><strong>Conclusions: </strong>During the pandemic, SARI mortality increased; influenza-associated mortality declined, and SARS-CoV-2 caused over a third of SARI deaths. Post-discharge mortality was higher than in-hospital mortality during both periods. Limiting premature discharge and strengthening post-discharge monitoring and nursing services could reduce unexpected deaths. Formative research to better understand post-discharge mortality is essential to reduce SARI deaths.</p>","PeriodicalId":23311,"journal":{"name":"Tropical Medicine and Health","volume":null,"pages":null},"PeriodicalIF":3.6,"publicationDate":"2023-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10729565/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138809178","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}
引用次数: 0
Differential cardiomyocyte transcriptomic remodeling during in vitro Trypanosoma cruzi infection using laboratory strains provides implications on pathogenic host responses 利用实验室菌株在体外感染克氏锥虫期间心肌细胞转录组重塑的差异对致病宿主反应的影响
IF 4.5
Tropical Medicine and Health Pub Date : 2023-12-01 DOI: 10.1186/s41182-023-00552-6
Katherine-Sofia Candray-Medina, Y. Nakagama, Masamichi Ito, Shun Nakagama, E. Tshibangu-Kabamba, Norihiko Takeda, Yuki Sugiura, Y. Nitahara, Yu Michimuko-Nagahara, N. Kaku, Yoko Onizuka, C. Arias, M. Mejía, Karla Alas, Susana Peña, Yasuhiro Maejima, Issei Komuro, J. Nakajima-Shimada, Yasutoshi Kido
{"title":"Differential cardiomyocyte transcriptomic remodeling during in vitro Trypanosoma cruzi infection using laboratory strains provides implications on pathogenic host responses","authors":"Katherine-Sofia Candray-Medina, Y. Nakagama, Masamichi Ito, Shun Nakagama, E. Tshibangu-Kabamba, Norihiko Takeda, Yuki Sugiura, Y. Nitahara, Yu Michimuko-Nagahara, N. Kaku, Yoko Onizuka, C. Arias, M. Mejía, Karla Alas, Susana Peña, Yasuhiro Maejima, Issei Komuro, J. Nakajima-Shimada, Yasutoshi Kido","doi":"10.1186/s41182-023-00552-6","DOIUrl":"https://doi.org/10.1186/s41182-023-00552-6","url":null,"abstract":"","PeriodicalId":23311,"journal":{"name":"Tropical Medicine and Health","volume":null,"pages":null},"PeriodicalIF":4.5,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138611852","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 helminth eggs in environmental and stool samples of farming households along Akaki River in Addis Ababa, Ethiopia. 埃塞俄比亚亚的斯亚贝巴Akaki河沿岸农户环境和粪便样本中寄生虫卵的分布情况。
IF 4.5
Tropical Medicine and Health Pub Date : 2023-11-24 DOI: 10.1186/s41182-023-00558-0
Bethlhem Kinfu Gurmassa, Sirak Robele Gari, Ephrem Tefera Solomon, Michaela L Goodson, Claire L Walsh, Bitew K Dessie, Bezatu Mengistie Alemu
{"title":"Distribution of helminth eggs in environmental and stool samples of farming households along Akaki River in Addis Ababa, Ethiopia.","authors":"Bethlhem Kinfu Gurmassa, Sirak Robele Gari, Ephrem Tefera Solomon, Michaela L Goodson, Claire L Walsh, Bitew K Dessie, Bezatu Mengistie Alemu","doi":"10.1186/s41182-023-00558-0","DOIUrl":"10.1186/s41182-023-00558-0","url":null,"abstract":"<p><strong>Background: </strong>Helminth infections are a public health issue in countries with poor sanitation facilities. However, there little information on the epidemiological association between helminths in wastewater and soil samples and rates of helminth infection among farming households along the Akaki River in Addis Ababa, Ethiopia.</p><p><strong>Methods: </strong>A cross-sectional study was conducted between November 2021 and February 2022. A stratified random sampling technique was used to select farming households. The sample size for each district was determined by a proportionate allocation to the number of households. From wastewater-irrigated farms, 70 wastewater samples, 28 soil samples, and 86 farmers' stool samples were collected and analyzed for helminths. A questionnaire was used to gather ethnographic data, about farming households, whereas wastewater and soil sample analysis was used to generate quantitative data on helminth loads. The data were systematically analysed by developing themes, and bias evaluated using triangulation validation methodologies. Potential pathways to helminth infection were evaluated by measuring. Total number of helminth eggs in wastewater, soil samples and farmer's stools was investigated using Poisson regression.</p><p><strong>Results: </strong>In this study, 82.9% of wastewater samples, 57.1% of soil samples, and 18.6% of farmers' stool samples contained helminth eggs. The most prevalent helminth was Ascaris lumbricoides in all samples (wastewater 67%, soil 25%, and stool 10.5%), followed by hookworm (wastewater 10%, soil 21.4%, and stool 6.9%) and Trichuris trichiura eggs (wastewater 5.7%, soil 10.7%, and stool 1.2%). There was a positive association between the total number of helminth eggs in wastewater and soil samples with counts in farmers' stool. The Poisson regression coefficients for wastewater and soil were, 1.63 (95% CI = 1.34-1.92) and 1.70 (95% CI = 1.39-2.01), (p < 0.05).</p><p><strong>Conclusions: </strong>This research has shown a clear association between the total helminth eggs in wastewater and soil samples and farmer stools along the Akaki River. Therefore, an integrated approach is essential to address the issue in this area and prevent the spread of further helminth infections.</p>","PeriodicalId":23311,"journal":{"name":"Tropical Medicine and Health","volume":null,"pages":null},"PeriodicalIF":4.5,"publicationDate":"2023-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10668356/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138300117","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}
引用次数: 0
Correction: RNA purification-free detection of SARS-CoV-2 using reverse transcription loop-mediated isothermal amplification (RT-LAMP). 更正:利用逆转录环介导的等温扩增(RT-LAMP)无RNA纯化检测SARS-CoV-2。
IF 4.5
Tropical Medicine and Health Pub Date : 2023-11-22 DOI: 10.1186/s41182-023-00555-3
Meng Yee Lai, Jeyanthi Suppiah, Ravindran Thayan, Ilyiana Ismail, Nur Izati Mustapa, Tuan Suhaila Tuan Soh, Affah Haji Hassan, Kalaiarasu M Peariasamy, Yee Leng Lee, Yee Ling Lau
{"title":"Correction: RNA purification-free detection of SARS-CoV-2 using reverse transcription loop-mediated isothermal amplification (RT-LAMP).","authors":"Meng Yee Lai, Jeyanthi Suppiah, Ravindran Thayan, Ilyiana Ismail, Nur Izati Mustapa, Tuan Suhaila Tuan Soh, Affah Haji Hassan, Kalaiarasu M Peariasamy, Yee Leng Lee, Yee Ling Lau","doi":"10.1186/s41182-023-00555-3","DOIUrl":"10.1186/s41182-023-00555-3","url":null,"abstract":"","PeriodicalId":23311,"journal":{"name":"Tropical Medicine and Health","volume":null,"pages":null},"PeriodicalIF":4.5,"publicationDate":"2023-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10664646/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138296087","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}
引用次数: 0
Measuring training effectiveness of laboratory biosafety program offered at African Center for Integrated Laboratory Training in 22 President's Emergency Plan for AIDS Relief supported countries (2008-2014). 衡量非洲综合实验室培训中心在22个总统艾滋病紧急救援计划支持国家提供的实验室生物安全方案的培训效果(2008-2014年)。
IF 4.5
Tropical Medicine and Health Pub Date : 2023-11-21 DOI: 10.1186/s41182-023-00557-1
Ritu Shrivastava, Thomas Stevens, Larry Westerman, David Bressler, Elsie van Schalkwyk, Cristina Bressler, Ken Ugwu, Christina Mwangi, Joel Peter Opio, Joseph Nkodyo, Jane W Mwangi, Monte D Martin, Shanna Nesby-O'Dell
{"title":"Measuring training effectiveness of laboratory biosafety program offered at African Center for Integrated Laboratory Training in 22 President's Emergency Plan for AIDS Relief supported countries (2008-2014).","authors":"Ritu Shrivastava, Thomas Stevens, Larry Westerman, David Bressler, Elsie van Schalkwyk, Cristina Bressler, Ken Ugwu, Christina Mwangi, Joel Peter Opio, Joseph Nkodyo, Jane W Mwangi, Monte D Martin, Shanna Nesby-O'Dell","doi":"10.1186/s41182-023-00557-1","DOIUrl":"10.1186/s41182-023-00557-1","url":null,"abstract":"<p><strong>Introduction: </strong>The African Center for Integrated Laboratory Training (ACILT) in Johannesburg, South Africa offered a laboratory biosafety program to improve laboratory biosafety practices in 22 President's Emergency Plan for AIDS Relief (PEPFAR) supported countries. This manuscript evaluates the transference of newly gained knowledge and skills to the participants' place of employment for HIV and TB diagnostic laboratory programs. It also serves as a follow-on to a previously published manuscript that measured training effectiveness for all courses offered at ACILT.</p><p><strong>Methods: </strong>ACILT offered 20 Laboratory Biosafety and Infrastructure courses (2008-2014), also referred as biosafety course/course comprising of 14 core laboratory safety elements to 402 participants from 22 countries. In 2015, participants received 22 e-questions divided into four categories: (1) Safety Policies, (2) Management's Engagement, (3) Safety Programs and (4) Assessments of Safety Practices to determine retrospectively the training effectiveness of biosafety practices in their place of employment 6 months before and after attending their course. We used Kirkpatrick model to assess the transference of knowledge, skills and obstructive factors.</p><p><strong>Results: </strong>20% (81/402) of the participants completed the e-questionnaire. The overall percentage of positive responses indicating implementation of new safety practices increased from 50% to 84%. Improvement occurred in all four categories after attending the course, with the greatest increases in Safety Policies (67-94%) and Safety Programs (43-91%). Creating a safety committee, allocating resources, and establishing a facility safety policy were important drivers for implementing and maintaining laboratory safety practices. In addition, accredited laboratories and countries with national safety regulations or policies had a higher percentage of improvements. The most reported challenges were inadequate funding and lack of management enforcement.</p><p><strong>Conclusions: </strong>PEPFAR and other partners' investments in training institutions, such as ACILT, were effective in building sustainable country ownership to strengthen biosafety practices and were leveraged to combat zoonotic diseases and COVID-19. Although support continues at the national/regional level, a standardized, coordinated and continent-wide sustainable approach to offer a biosafety program-like ACILT is missing. Continuous offerings of biosafety programs similar to ACILT could contribute to sustainable strengthening of laboratory biosafety, QMS and pandemic preparedness.</p>","PeriodicalId":23311,"journal":{"name":"Tropical Medicine and Health","volume":null,"pages":null},"PeriodicalIF":4.5,"publicationDate":"2023-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10662895/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138291873","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}
引用次数: 0
The landscape of drug resistance in Plasmodium falciparum malaria in the Democratic Republic of Congo: a mapping systematic review. 刚果民主共和国恶性疟原虫疟疾耐药情况:制图系统回顾。
IF 4.5
Tropical Medicine and Health Pub Date : 2023-11-15 DOI: 10.1186/s41182-023-00551-7
Nadine Kalenda Kayiba, Evariste Tshibangu-Kabamba, Angel Rosas-Aguirre, Natsuko Kaku, Yu Nakagama, Akira Kaneko, Dieudonné Mvumbi Makaba, Doudou Yobi Malekita, Brecht Devleesschauwer, Joris Losimba Likwela, Pius Kabututu Zakayi, Patrick DeMol, Georges Mvumbi Lelo, Marie-Pierre Hayette, Paul Lusamba Dikassa, Yasutoshi Kido, Niko Speybroeck
{"title":"The landscape of drug resistance in Plasmodium falciparum malaria in the Democratic Republic of Congo: a mapping systematic review.","authors":"Nadine Kalenda Kayiba, Evariste Tshibangu-Kabamba, Angel Rosas-Aguirre, Natsuko Kaku, Yu Nakagama, Akira Kaneko, Dieudonné Mvumbi Makaba, Doudou Yobi Malekita, Brecht Devleesschauwer, Joris Losimba Likwela, Pius Kabututu Zakayi, Patrick DeMol, Georges Mvumbi Lelo, Marie-Pierre Hayette, Paul Lusamba Dikassa, Yasutoshi Kido, Niko Speybroeck","doi":"10.1186/s41182-023-00551-7","DOIUrl":"10.1186/s41182-023-00551-7","url":null,"abstract":"<p><strong>Context: </strong>The Democratic Republic of Congo (DRC), one of the most malaria-affected countries worldwide, is a potential hub for global drug-resistant malaria. This study aimed at summarizing and mapping surveys of malaria parasites carrying molecular markers of drug-resistance across the country.</p><p><strong>Methods: </strong>A systematic mapping review was carried out before July 2023 by searching for relevant articles through seven databases (PubMed, Embase, Scopus, African Journal Online, African Index Medicus, Bioline and Web of Science).</p><p><strong>Results: </strong>We identified 1541 primary studies of which 29 fulfilled inclusion criteria and provided information related to 6385 Plasmodium falciparum clinical isolates (collected from 2000 to 2020). We noted the PfCRT K76T mutation encoding for chloroquine-resistance in median 32.1% [interquartile interval, IQR: 45.2] of analyzed malaria parasites. The proportion of parasites carrying this mutation decreased overtime, but wide geographic variations persisted. A single isolate had encoded the PfK13 R561H substitution that is invoked in artemisinin-resistance emergence in the Great Lakes region of Africa. Parasites carrying various mutations linked to resistance to the sulfadoxine-pyrimethamine combination were widespread and reflected a moderate resistance profile (PfDHPS A437G: 99.5% [IQR: 3.9]; PfDHPS K540E: 38.9% [IQR: 47.7]) with median 13.1% [IQR: 10.3] of them being quintuple IRN-GE mutants (i.e., parasites carrying the PfDHFR N51I-C59R-S108N and PfDHPS A437G-K540E mutations). These quintuple mutants tended to prevail in eastern regions of the country. Among circulating parasites, we did not record any parasites harboring mutations related to mefloquine-resistance, but we could suspect those with decreased susceptibility to quinine, amodiaquine, and lumefantrine based on corresponding molecular surrogates.</p><p><strong>Conclusions: </strong>Drug resistance poses a serious threat to existing malaria therapies and chemoprevention options in the DRC. This review provides a baseline for monitoring public health efforts as well as evidence for decision-making in support of national malaria policies and for implementing regionally tailored control measures across the country.</p>","PeriodicalId":23311,"journal":{"name":"Tropical Medicine and Health","volume":null,"pages":null},"PeriodicalIF":4.5,"publicationDate":"2023-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10647042/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134649924","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}
引用次数: 0
The new wave of Congo virus in Pakistan: emerging threat. 巴基斯坦新一波刚果病毒:新出现的威胁。
IF 4.5
Tropical Medicine and Health Pub Date : 2023-11-14 DOI: 10.1186/s41182-023-00559-z
Isra Masood, Muhammad Junaid Tahir, Ather Naeem, Oadi N Shrateh, Ali Ahmed
{"title":"The new wave of Congo virus in Pakistan: emerging threat.","authors":"Isra Masood, Muhammad Junaid Tahir, Ather Naeem, Oadi N Shrateh, Ali Ahmed","doi":"10.1186/s41182-023-00559-z","DOIUrl":"10.1186/s41182-023-00559-z","url":null,"abstract":"<p><p>Congo virus, or Crimean-Congo hemorrhagic fever (CCHF), is a tick-borne disease caused by a single-stranded RNA virus (genus nairovirus, Bunyaviridae family). It spreads through infected ticks' bites or contact with viremic individuals or livestock. Factors supporting its spread include hot, humid climates, limited pesticide use, poor animal control, inadequate irrigation during monsoons, and vector control deficiencies. Nosocomial transmission in under-resourced hospitals poses a threat to healthcare workers. Decades of CCHF cases persist in Pakistan due to these factors, with six deaths reported by June 2023. To combat the epidemic, Pakistan should raise awareness, improve irrigation, establish surveillance systems, and implement livestock quarantine and vaccination.</p>","PeriodicalId":23311,"journal":{"name":"Tropical Medicine and Health","volume":null,"pages":null},"PeriodicalIF":4.5,"publicationDate":"2023-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10644479/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"92156845","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}
引用次数: 0
Influence of women empowerment on childhood (12-23 months) immunization coverage: Recent evidence from 17 sub-Saharan African countries. 增强妇女权能对儿童(12-23个月)免疫覆盖率的影响:来自17个撒哈拉以南非洲国家的最新证据。
IF 4.5
Tropical Medicine and Health Pub Date : 2023-11-14 DOI: 10.1186/s41182-023-00556-2
Abigail Amoah, Jacob Issaka, Castro Ayebeng, Joshua Okyere
{"title":"Influence of women empowerment on childhood (12-23 months) immunization coverage: Recent evidence from 17 sub-Saharan African countries.","authors":"Abigail Amoah, Jacob Issaka, Castro Ayebeng, Joshua Okyere","doi":"10.1186/s41182-023-00556-2","DOIUrl":"10.1186/s41182-023-00556-2","url":null,"abstract":"<p><strong>Background: </strong>There is a global consensus that child immunization plays an important role in promoting the health and well-being of children. Despite the quintessential role of immunization, not all children receive full immunization coverage. We examined the association between women empowerment and childhood immunization coverage in sub-Saharan Africa (SSA).</p><p><strong>Methods: </strong>The most recent Demographic and Health Survey data of 17 SSA countries were used for the analysis, with a sample of 19,223. The outcome and exposure variables were full immunization coverage and women empowerment, respectively. Full immunization was computed from percentage of children between the ages of 12 and 23 months who had received the following vaccines at any point in time: one dose of Bacille Calmette-Guérin, three doses of the vaccine protecting against diphtheria, pertussis, and tetanus or the tetravalent/pentavalent vaccine, three doses of the polio vaccine, and one dose of the measles vaccine (either as a standalone measles vaccine or as part of a combination with other immunogens). Women's empowerment was an index of labour participation, acceptance towards spousal violence, decision-making capacity and general knowledge level. Descriptive analysis and multilevel logistic regression were performed. Results were reported in adjusted odds ratio with a corresponding 95% confidence interval.</p><p><strong>Results: </strong>The study found that 56.6% of children were fully immunized. Children of employed mothers were 1.16 times more likely to be fully immunized. Children of mothers with higher acceptance toward violence were less likely to be fully immunized [aOR = 0.90, CI 0.81, 0.99]. The odds of full immunization were higher among children born to mothers with high [aOR = 1.11, CI 1.01, 1.22] decision-making capacity. Higher odds of full immunization were found among children born to mothers with medium [aOR = 1.24, CI 1.13, 1.36] to high [aOR = 1.44, CI 1.27, 1.63] general knowledge level.</p><p><strong>Conclusions: </strong>We conclude that empowering women through livelihood empowerment interventions can increase their decision-making capacity and foster their resolve to ensure the full immunization of their children. This can be achieved by consciously investing in initiatives such as vocational training programs, job placement services, or support for entrepreneurship initiatives to encourage and support women's workforce participation.</p>","PeriodicalId":23311,"journal":{"name":"Tropical Medicine and Health","volume":null,"pages":null},"PeriodicalIF":4.5,"publicationDate":"2023-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10644494/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"92156844","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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