Tropical Medicine and Infectious Disease最新文献

{"title":"Field-Applicable Loop-Mediated Isothermal Amplification for the Detection of Seven Common Human Papillomavirus Subtypes.","authors":"Hongyi Li, He Tan, Xiaona Lv, Zhiqiang Han, Yuxin Wang, Shijue Gao, Ruiqin Zhang, Xinxin Shen, Xuejun Ma, Yanqing Tie","doi":"10.3390/tropicalmed9100240","DOIUrl":"https://doi.org/10.3390/tropicalmed9100240","url":null,"abstract":"<p><p>Persistent HPV infection is a major risk factor for the subsequent development of cervical cancer. LAMP is simple and suitable for field detection in the resource-limited settings. In this study, hydroxy naphthol blue (HNB)-based visual LAMP and evagreen-based fluorescent LAMP coupled with a microfluidic chip (LAMP-chip) were established for the field detection of seven subtypes of HPV. The analytical sensitivity was 19-233 copies/reaction. The overall clinical sensitivity was 97.35% for visual LAMP and 98.23% for LAMP-chip. Both LAMP assays exhibited 100% specificity and were completed in less than 50 min. Additionally, both assays did not require complicated nucleic acid extraction and purification steps. A complete quality control monitoring system (including internal control, positive quality control and negative control) in the LAMP assays further ensured the credibility of the results. Our findings demonstrated that the proposed LAMP assays have the potential to be applied in the testing of common HPV DNA in field investigations (visual LAMP) or within communities and primary health centers (LAMP-chip).</p>","PeriodicalId":23330,"journal":{"name":"Tropical Medicine and Infectious Disease","volume":"9 10","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11511265/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142508827","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comprehensive Tuberculosis Screening and Treatment at a Prison in Central Papua Province, Indonesia.","authors":"Aurelia, Aurelia, Cahya Muslimin, Yetty Balik, Trisasi Lestari, Firdaus Hafidz, Christa Dewi, Christopher Lowbridge, Ari Probandari","doi":"10.3390/tropicalmed9100241","DOIUrl":"https://doi.org/10.3390/tropicalmed9100241","url":null,"abstract":"<p><p>Incarcerated people have been reported to have higher rates of tuberculosis (TB) than the general population. However, TB is rarely reported among incarcerated people in correctional facilities in Mimika District, in Central Papua Province of Indonesia. This study aims to describe the outcomes of comprehensive screening and treatment of TB disease and latent TB infection (LTBI) within a prison in Mimika. In response to a newly reported case of TB within a prison, a facility-wide comprehensive screening and treatment program was carried out for both TB disease and LTBI between September 2021 and June 2022. We evaluated the outcomes of the screening intervention, including the number of people found to have TB and LTBI and the number and proportion of people who started and completed TB-preventive treatment at the facility. A total of 403 incarcerated people and facility staff participated in the comprehensive screening program. Ten participants were found to have TB disease, all of whom commenced treatment. LTBI was detected in 256 (64%) participants, 251 (98%) of whom completed TB-preventive treatment. Comprehensive screening revealed a high prevalence of TB disease and LTBI in this prison. Completion of treatment for TB disease and latent TB infection was high. These outcomes suggest a role for routine search-treat-prevent strategies for TB in this setting.</p>","PeriodicalId":23330,"journal":{"name":"Tropical Medicine and Infectious Disease","volume":"9 10","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11510990/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142516675","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Frequency, Clinical Characteristics, and Management of Snakebite Patients Admitted at the Envenomation Treatment Center of the Applied Biology Research Institute of Guinea.","authors":"Mohamed Ciré Diallo, Karifa Kourouma, Saidou Boumbaly, Armand Saloun Kamano, Abdoulaye Sow, Fassou Mathias Grovogui, Sahar Traore, Alexandre Delamou","doi":"10.3390/tropicalmed9100238","DOIUrl":"https://doi.org/10.3390/tropicalmed9100238","url":null,"abstract":"<p><p>The aim of this study was to describe the frequency, clinical signs, management, and outcomes of snakebite patients admitted to the envenomation treatment center of the Institut de Recherche en Biologie Appliquée de Guinée (IRBAG). This was a retrospective review combining aggregated annual statistics (2011-2015) and routine data (from January to October 2021) from the IRBAG treatment center. There were 1345 (57.2%) snakebite victims out of a total of 2352 consultations at the center during the study period. Males (67.7%), persons aged ≥45 years (29%) and ≤14 years (27.7%), farmers/housewives (44.5%), workers (23.9%), and those residing in the Kindia Prefecture (53.5%) were the most commonly affected. The majority of victims (84.5%) were admitted three hours after snakebite, with bites mainly occurring in rural areas (86.5%) and during the rainy season (83.2%). Pain (100%), edema (76.8%), and bleeding (65.2%) were the most common clinical presentations. Almost all victims received antivenom serum (98%), antibiotics (87.7%), and analgesics or anti-inflammatory drugs (88.4%). Six out of the one hundred and fifty-five patients died. Snakebites are a frequent public health problem in rural Guinea. The majority of victims seek medical attention too late. There is an urgent need to include snakebite in the country's list of priority NTDs in order to promote access to antivenom serum.</p>","PeriodicalId":23330,"journal":{"name":"Tropical Medicine and Infectious Disease","volume":"9 10","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11511373/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142508829","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Community Engagement and Collaboration between Researchers and Community Stakeholders for Schistosomiasis and Malaria Projects in Ingwavuma, uMkhanyakude District, KwaZulu-Natal.","authors":"Zinhle Mthembu, Moses John Chimbari","doi":"10.3390/tropicalmed9100236","DOIUrl":"https://doi.org/10.3390/tropicalmed9100236","url":null,"abstract":"<p><p>Community engagement is a multiphase process that is crucial for successful community-based health interventions. This study investigates the collaborative phase of community engagement, specifically within a co-developed framework implemented in uMkhanyakude District, South Africa. A qualitative case study approach was employed to explore the experiences of key community stakeholders during the collaborative phase of project implementation. Data collection involved key informant interviews, focus group discussions, and direct observation. The findings demonstrate the potential for effective collaboration among village headmen, community advisory board members, and community research assistants to address local health challenges. Community research assistants played a particularly valuable role in facilitating participatory research and hands-on engagement with researchers. However, several barriers hindered the collaborative process, including demanding work conditions, communication issues regarding compensation, inappropriate behavior from the research team, and culturally insensitive interactions. While community-based participatory research offers a promising collaborative approach for addressing health issues, a careful consideration of local socio-cultural dynamics is essential to avoid misunderstandings and overcome potential barriers. Addressing these challenges is crucial to ensuring that collaborative partnerships effectively empower communities and achieve sustainable improvements in health outcomes.</p>","PeriodicalId":23330,"journal":{"name":"Tropical Medicine and Infectious Disease","volume":"9 10","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11511085/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142508821","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Determinants of Low Coverage of the Free Surgical Care Programme for Trachomatous Trichiasis in Rural Guinea in 2022.","authors":"Lamine Lamah, Delphin Kolié, Akoi Zoumanigui, Nouhou Konkouré Diallo, Mamadou Camara, Hawa Manet, Tamba Mina Millimouno, Bienvenu Salim Camara, Aissata Tounkara, Alexandre Delamou","doi":"10.3390/tropicalmed9100239","DOIUrl":"https://doi.org/10.3390/tropicalmed9100239","url":null,"abstract":"<p><p>This study aimed to describe the experiences of healthcare personnel and patients in the organization of free surgical campaigns and care for trachomatous trichiasis in the health district of Siguiri in Guinea, including challenges experienced in providing surgical care. This was an explanatory qualitative study conducted in 2022 in the health district of Siguiri. A total of 20 participants were interviewed including patients (<i>n</i> = 7; 35%), community health workers (<i>n</i> = 4; 20%), health services managers, and healthcare providers (<i>n</i> = 8; 40%). Two main data collection technics were used: documentary review and in-depth individual interviews. All interviews were transcribed and manually coded using an Excel extraction spreadsheet. Data were analysed using inductive and deductive approaches. The results showed several organizational, structural, and community challenges that underlined the low surgical coverage of trachomatous trichiasis in the health district of Siguiri. Organizational challenges included the low involvement of local actors in planning activities, the limited timeframe of the campaigns, and the lack of logistics for activities supervision and patients' transportation to surgery sites. Structural challenges included the inadequacy of health centres to provide surgical services, poor health infrastructures, and sanitation conditions in some areas. Individual challenges included remoteness of surgical sites and costs associated with services provision including medicines. Community challenges included fear of surgery and the coincidence of the campaigns with agricultural and mining activities. The results of the study call on the national neglected tropical disease program and its partners to adopt and promote micro-planning of trachomatous trichiasis surgical activities, with the effective participation of local stakeholders in endemic health districts. They should also envision integrating the management of surgical treatment including costs associated with care (transportation, food, rehabilitation support for patients who have undergone surgery) and complications of surgical procedures for an expansion of the trachomatous trichiasis free surgical care coverage in endemic health districts in Guinea.</p>","PeriodicalId":23330,"journal":{"name":"Tropical Medicine and Infectious Disease","volume":"9 10","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11511589/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142508822","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Frequency and Factors Associated with Disabilities among Leprosy Patients Admitted to the Kindia Disability Prevention and Physical Rehabilitation Centre (Pirp) in Guinea from 2017 to 2021.","authors":"Sy Savané Ibrahima Sory, Sidibe Sidikiba, Kolié Delphin, Camara Mamadou, Sakho Fatoumata, Sidibé Sadan, Chérif Mahamoud Sama, Doumbouya Sékou, Nabé Abdoul Karim, Delamou Alexandre","doi":"10.3390/tropicalmed9100237","DOIUrl":"https://doi.org/10.3390/tropicalmed9100237","url":null,"abstract":"<p><p>This study aims to estimate the prevalence and analyze the factors associated with leprosy-related disabilities at the Kindia Disability Prevention and Physical Rehabilitation Centre (PIRP) in Guinea. It is a cross-sectional study using routine data from the centre from 2017 to 2021. Of 115 patients, 76% had a disability, 49% of which were grade II and 27% grade I. The age range of 15 to 30 years was the most represented (43.5%), with the average age (standard deviation) being 38 (16.5) years. Children under 14 years of age represented 3.5% of the total. Most (89%) patients had newly diagnosed leprosy. The majority (66.1%) had never come in contact with people with leprosy symptoms. Almost all (99.1%) patients had type 1 reactions on admission. Patients with multibacillary leprosy were in the majority (83.5%), and those with symptoms lasting 7-12 months represented 56.5% of the sample. In total, 79.1% of the patients received corticosteroid therapy, and 92.1% were reported cured at discharge. This neglected tropical disease continues to be a challenge in Guinea, even though leprosy care is free.</p>","PeriodicalId":23330,"journal":{"name":"Tropical Medicine and Infectious Disease","volume":"9 10","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11511364/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142508828","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Epidemiology, Detection and Treatment of Malaria.","authors":"Wenn-Chyau Lee, Yee-Ling Lau","doi":"10.3390/tropicalmed9100235","DOIUrl":"https://doi.org/10.3390/tropicalmed9100235","url":null,"abstract":"<p><p>Malaria, one of the oldest infections to affect humans, incurs significant healthcare burdens across various parts of the world [...].</p>","PeriodicalId":23330,"journal":{"name":"Tropical Medicine and Infectious Disease","volume":"9 10","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11510727/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142508825","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Factors Associated with IgG/IgM Levels after SARS-CoV-2 Vaccination in Patients with Head and Neck Cancer.","authors":"Wei Liao, Haoyu Liang, Yujian Liang, Xianlu Gao, Guichan Liao, Shaohang Cai, Lili Liu, Shuwei Chen","doi":"10.3390/tropicalmed9100234","DOIUrl":"https://doi.org/10.3390/tropicalmed9100234","url":null,"abstract":"<p><p>This study evaluated the factors influencing IgG/IgM antibody levels in 120 patients with head and neck cancer (HNC) following vaccination with inactivated SARS-CoV-2 vaccines. Each patient's demographic and clinical data were documented, and serum IgG and IgM antibodies were detected using a commercial magnetic chemiluminescence enzyme immunoassay kit. The results indicated that while all patients had received at least one vaccine dose, 95 tested positive for IgG and 25 were negative. A higher proportion of IgG-positive patients had received three vaccine doses. Comparatively, gamma-glutamyl transferase levels were elevated in IgM-negative patients. The study further differentiated patients based on their treatment status: 46 were treatment-naive and 74 had received chemotherapy combined with immune checkpoint inhibitors (ICT) at enrollment. Despite similar baseline characteristics and time from vaccination to antibody detection, IgM positivity was significantly lower in the ICT group, with no significant difference in IgG positivity between the treatment-naive and ICT groups. A multivariable analysis identified the number of vaccine doses as an independent factor of IgG positivity, while ICT emerged as an independent risk factor for IgM positivity. Additionally, IgG titers generally declined over time, although patients with higher baseline IgG levels maintained higher titers longer. In conclusion, ICT in patients with HNC does not significantly affect IgG levels post-vaccination. However, booster vaccinations have been shown to be associated with higher IgG positivity, although these levels gradually decrease over time.</p>","PeriodicalId":23330,"journal":{"name":"Tropical Medicine and Infectious Disease","volume":"9 10","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11511189/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142508826","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"What Do Travelers Know about Traveler's Diarrhea? Impact of a Pre-Travel Consultation in the Lisbon Area, Portugal.","authors":"Joana Estrada, Cláudia Conceição, Gonçalo Figueiredo Augusto, Rosa Teodósio","doi":"10.3390/tropicalmed9100232","DOIUrl":"https://doi.org/10.3390/tropicalmed9100232","url":null,"abstract":"<p><p>Traveler's diarrhea (TD) is one of the most common travel-related health problems, largely interfering with planned activities and potentially contributing to antimicrobial resistance. This study aimed to characterize the knowledge about TD among pre-travel consultation users of one Portuguese travel clinic and determine the impact of the consultation on knowledge levels. Using a quasi-experimental, separate-sample pretest-posttest design, participants were randomly assigned to two groups: control/pre-consultation group (CG) or experimental/post-consultation group (EG). An anonymous self-administered questionnaire was used. A total of 470 participants were analyzed (227 CG; 243 EG). The EG/post-consultation group showed significant improvement in knowledge, with correct answers increasing from 63% to 75% (<i>p</i> < 0.001). However, knowledge gaps persisted: over 50% were unaware of TD's self-limited nature, 30% did not recognize loperamide as a symptom reliever, and 36% believed all travelers should take antibiotics to prevent TD. The educational level and previous travel outside Europe influenced baseline knowledge; previous travel medicine consultations and information on TD improved knowledge in both groups and made it easier to acquire knowledge on the subject. Thus, a pre-travel consultation effectively increased travelers' TD knowledge. However, post-consultation knowledge levels remained suboptimal, indicating the need for targeted interventions to increase travelers' literacy and optimize pre-travel consultations.</p>","PeriodicalId":23330,"journal":{"name":"Tropical Medicine and Infectious Disease","volume":"9 10","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11510960/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142516676","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Alternative Pharmaceutical Innovation Models in Competitive Markets: A Collaborative Approach to Develop a Novel Drug for Hepatitis C.","authors":"Marcela Vieira, Iulia Slovenski, Kaitlin Large, Adrian Alonso Ruiz, Suerie Moon","doi":"10.3390/tropicalmed9100233","DOIUrl":"https://doi.org/10.3390/tropicalmed9100233","url":null,"abstract":"<p><p>Alternative innovation models have emerged to address failures of the traditional pharmaceutical system, particularly for diseases where market incentives do not attract sufficient research and development efforts. However, the feasibility of such models for diseases with significant markets is not well-established. This article analyses the development of a novel drug (ravidasvir) for the treatment of hepatitis C, a highly profitable market. Data from qualitative research methods, including literature reviews and semi-structured interviews, was analyzed using a novel conceptual framework focusing on actors, resources, organizational practices, and outcomes. Dissimilar to other projects, ravidasvir did not involve any major pharmaceutical companies. Rather, it leveraged the capacities of actors less traditionally involved in the development of novel medicines by constructing a collaborative network of private and public partners from low- and middle-income countries with a shared goal. The collaboration was successful in developing a highly effective, easy-to-use, and affordable medicine and contributed significantly to capacity-strengthening. However, the case also highlighted that strategic behavior by competing for-profit firms could pose significant challenges and that changing external conditions reduced the potential public health impact of the drug. Lessons from ravidasvir can inform future efforts to develop alternative innovation models for therapeutic areas with significant commercial interest.</p>","PeriodicalId":23330,"journal":{"name":"Tropical Medicine and Infectious Disease","volume":"9 10","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11511465/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142508817","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}