Journal of Vector Borne Diseases最新文献

{"title":"Comment on \"Outcome assessment of the implementation of Mass Drug Administration against lymphatic filariasis in Kalaburagi (Gulbarga) Karnataka, India: A cross-sectional survey\".","authors":"Saurabh RamBihariLal Shrivastava","doi":"10.4103/jvbd.jvbd_232_24","DOIUrl":"https://doi.org/10.4103/jvbd.jvbd_232_24","url":null,"abstract":"","PeriodicalId":17660,"journal":{"name":"Journal of Vector Borne Diseases","volume":" ","pages":""},"PeriodicalIF":1.2,"publicationDate":"2025-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144742402","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Molecular virology profiles of dengue cases in Bandung, Indonesia.","authors":"Nisa Fauziah, Yunia Sribudiani, Lia Faridah, Fedri Ruluwedrata Rinawan, Naufal Fakhri Nugraha, Muhammad Farhan Maulana, Dwi Agustian","doi":"10.4103/jvbd.jvbd_23_24","DOIUrl":"https://doi.org/10.4103/jvbd.jvbd_23_24","url":null,"abstract":"<p><strong>Background objectives: </strong>Bandung City, West Java, Indonesia, is one of the hyperendemic areas for dengue virus (DENV) infections. However, data on virus distribution in this area is currently limited. This study aims to assess the distribution of serotypes and genotypes of DENV isolated from dengue patients in primary healthcare facilities (PHC) in 2018.</p><p><strong>Methods: </strong>A cross-sectional study was conducted in three PHCs in Bandung City from May to October 2018. Suspected dengue patients with a fever lasting than five days were enrolled. Demographic and clinical data were collected upon enrollment. Dengue NS1 rapid diagnostic test (RDT) were followed by RT-PCR and nested PCR performed on patients' serum samples. A phylogenetic tree was constructed based on E-gene sequence data.</p><p><strong>Results: </strong>A total of 236 suspected dengue patients were enrolled in this study, with 51 confirmed dengue infections based on the NS1 rapid test. Among these 51 cases, 23 (45%) were positive by RT-PCR (2 DENV-1, 6 DENV-2, 10 DENV-3, 3 DENV-4, and 2 with mixed DENV serotypes). The predominance DENV-3 in 2018 was consistent with the reports from 2008, indicating the same predominant serotype circulated in the area. Phylogenetic analysis revealed that DENV-1 genotype 1 and DENV-3 genotype 1 were circulating in Bandung.</p><p><strong>Interpretation conclusion: </strong>All four DENV serotypes were identified in samples collected from PHC Neglasari, Padasuka, and Sukajadi, confirming that Bandung is a hyperendemic areas. Strengthening vector control measures is crucial to prevent further transmission of dengue infection.</p>","PeriodicalId":17660,"journal":{"name":"Journal of Vector Borne Diseases","volume":" ","pages":""},"PeriodicalIF":1.2,"publicationDate":"2025-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144742403","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A cross-sectional survey of malaria in asymptomatic and symptomatic individuals in an endemic area of Northcentral Nigeria.","authors":"Onyekachi Nnaemeka Akoma, Felicia Ngozi Okoh, Ofoma Cornelius Amoke","doi":"10.4103/jvbd.jvbd_16_25","DOIUrl":"https://doi.org/10.4103/jvbd.jvbd_16_25","url":null,"abstract":"<p><strong>Background objectives: </strong>The proportion of asymptomatic malaria is no doubt one of the factors determining the dynamics of its transmission and burden in endemic areas. This research focused on screening for Plasmodium parasitemia and analysing the relationship between proportions of malaria cases among asymptomatic and symptomatic persons in Lokoja, Northcentral Nigeria.</p><p><strong>Methods: </strong>Cross-sectional survey and experimental designs were adopted. A semi-structured interview guide was used to collect data on socio-demography and clinical status of the participants. Blood samples were randomly collected from 328 consenting participants during high transmission season (April - October) of malaria within a three-year period (2018-2021), and screened for Plasmodium species by light microscopy (LM). Statistical analyses of related parameters were performed using the Statistical Package for the Social Sciences (SPSS) version 25 software.</p><p><strong>Results: </strong>A total of 12.4% (25/202) and 85.7% (108/126) asymptomatic and symptomatic individuals were recorded respectively. There was no significant difference (p > 0.05) between the mean distributions of malaria cases among the asymptomatic and those of symptomatic persons. All cases identified were uncomplicated and falciparum-specific; and a 40.5% (133/328) prevalence of P. falciparum malaria with hyperparasitemia was observed in the area. The implications of these findings were discussed in relation to previous rates and other nearby endemic settings.</p><p><strong>Interpretation conclusion: </strong>As a matter of success towards malaria elimination, a renewed call is made for regular monitoring of malaria prevalence using more efficient means of diagnosis and consideration of control strategies such as regular mass antimalarial administration, particularly targeting the often-neglected asymptomatic reservoir subset.</p>","PeriodicalId":17660,"journal":{"name":"Journal of Vector Borne Diseases","volume":" ","pages":""},"PeriodicalIF":1.2,"publicationDate":"2025-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144742400","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The In2Care® EaveTubes improved protection against malaria vectors in a small-scale field study at Kagera Sugar Ltd, Missenyi, Tanzania.","authors":"Eliningaya J Kweka, Marit Farenhorst, Tessa van Dijk, Maria Zinga, Anne Osinga, Humphrey Mazigo","doi":"10.4103/jvbd.jvbd_149_24","DOIUrl":"https://doi.org/10.4103/jvbd.jvbd_149_24","url":null,"abstract":"<p><strong>Backgound objectives: </strong>A small-scale In2Care® EaveTubes (ET) new malaria vector control product efficacy study was carried out at Kagera Sugar Ltd, Missenyi, Tanzania between October 2019 and July 2020. Its main aim was to gather proof of impact against wild populations of anopheline mosquitoes (malaria vectors) in Tanzanian rural field settings.</p><p><strong>Methods: </strong>In total, 350 Eave Tubes were installed in 100 iron sheet barrack rooms and 35 mud houses in a selected camp where workers of Kagera Sugar Ltd resided. Two similar camps did not receive any malaria interventions and served as control sites to monitor baseline mosquito densities. During the 9-month intervention period, the quality and durability of the insecticide- treated ET were tested. Entomological sampling was conducted to assess indoor mosquito densities pre- and post ET installation. Furthermore, malaria disease cases were monitored through passive case detection at the local health facility to indicate potential epidemiological impacts.</p><p><strong>Results: </strong>Entomological data showed that ET significantly reduced indoor anopheline vector densities by 58% overall and 75% during the peak mosquito season. Quality control results showed no degradation of insecticide content or mosquitocidal efficacy of ET netting samples used for 6 months under field conditions. Malaria incidence results showed a decline in disease cases in the ET-treated camp and the control camps, compared to the baseline. The highest malaria case incidence reduction was in the ET intervention camp (25.6%).</p><p><strong>Interpretation conclusion: </strong>These findings indicate a high efficacy and durability of ET against wild malaria mosquitoes. Eave Tubes can be a new tool in the malaria control toolbox, complementing malaria vector control tools available in areas where insecticide resistance has compromised existing vector control tools.</p>","PeriodicalId":17660,"journal":{"name":"Journal of Vector Borne Diseases","volume":" ","pages":""},"PeriodicalIF":1.2,"publicationDate":"2025-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144753708","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Chagas incidence and mortality cyclicities: a global burden of disease evaluation.","authors":"Lucas Casagrande Passoni Lopes","doi":"10.4103/jvbd.jvbd_106_25","DOIUrl":"https://doi.org/10.4103/jvbd.jvbd_106_25","url":null,"abstract":"<p><strong>Background objectives: </strong>Chagas is a neglected tropical disease with a significant socioeconomic impact. Although several studies have focused on evaluating its epidemiological aspects, the cyclical behavior of its incidence and mortality remains poorly explored; thereto, this study aimed to evaluate them.</p><p><strong>Methods: </strong>This was a retrospective with populational approach study that employed data from the Global Burden of Disease. The cyclicity was evaluated by using the Fast Fourier Transform to fit cyclical sinusoidal models for every period between 2 and 40 years in 0.1 -year increments. Each model was manually evaluated by its p-value of joint sine-cosine term, its semiamplitude, its 95% confidence interval, and how well it followed the graphical behavior of the reference source. Data were stratified by age group, sex, and country by using R software 4.4.2.</p><p><strong>Results: </strong>Overall, cycles betwixt 20 and 30 years were identified, with incidence and mortality cyclicity displaying alignment trends. Shorter cycle lengths were observed in the 0-14 age group compared to other age groups. Sex differences were minor noted. Between the evaluated countries, Mexico and Argentina presented shorter mortality cycles in comparison with their incidence cycles.</p><p><strong>Interpretation conclusion: </strong>Interpretation & Conclusion: Although there are some specificities in the Chagas cyclicity, there is a general tendency of alignment among its cycles. Recognizing these patterns, derived from a complex interplay between biological, economic, social, and political variables, is fundamental to optimizing the timing and targeting of public health interventions on the issue.</p>","PeriodicalId":17660,"journal":{"name":"Journal of Vector Borne Diseases","volume":" ","pages":""},"PeriodicalIF":1.2,"publicationDate":"2025-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144959000","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Host preferences, Bloodmeal sources, and Gonotrophic cycles of Anopheles gambiae complex mosquitoes in Rural Southwestern Nigeria.","authors":"Florence Ajayi, Kolade Ibrahim, Victor Oguayo, Chiaka Anumudu, Aline Noutcha","doi":"10.4103/jvbd.jvbd_23_25","DOIUrl":"https://doi.org/10.4103/jvbd.jvbd_23_25","url":null,"abstract":"<p><strong>Background objectives: </strong>Malaria remains a major public health challenge in sub-Saharan Africa, with the Anopheles gambiae complex, comprising An. gambiae s.s., An. coluzzii, and An. arabiensis, as the principal vectors. These sibling species exhibit diverse ecological and behavioural traits that significantly influence malaria transmission dynamics. Understanding their host preferences, blood-meal sources, and gonotrophic cycles is vital for designing effective vector control strategies. This study investigated the feeding behaviour, blood meal sources, and exophilic tendencies of An. gambiae complex mosquitoes in Igbo-Ora and Idere communities, southwestern Nigeria.</p><p><strong>Methods: </strong>Indoor-resting mosquitoes were collected using pyrethroid spray collections (PSC) during the rainy season of 2022 over three months. Specimens were identified morphologically and confirmed molecularly. Data on abdominal conditions, feeding behaviour, gonotrophic cycles, and blood-meal sources were analysed. Human blood index (HBI) and exophily degree (DE) were calculated using standard protocols.</p><p><strong>Results: </strong>A total of 298 An. gambiae complex mosquitoes were examined. Fully fed mosquitoes accounted for 77.2%, while 12.4% were gravid, and 5.4% were half-gravid. An. coluzzii in Idere exhibited the highest feeding rate (84.6%), followed by An. arabiensis in Igbo-Ora (77.8%). The gonotrophic cycle was longer in Idere (5-6 days) compared to Igbo-Ora (3-4 days). Blood-meal analysis of 421 specimens identified humans as the predominant host (45.8%), with mixed blood meals indicating opportunistic feeding. The highest HBI was recorded in An. gambiae (0.69) in Idere and An. arabiensis (0.96) in Igbo-Ora.</p><p><strong>Interpretation conclusion: </strong>The findings reveal significant ecological and behavioural variability within the An. gambiae complex, including their strong anthropophilic tendencies and opportunistic feeding behaviour. These characteristics underscore the species' pivotal role in malaria transmission and highlight the need for localized, species-specific vector control interventions targeting feeding and reproductive behaviours.</p>","PeriodicalId":17660,"journal":{"name":"Journal of Vector Borne Diseases","volume":" ","pages":""},"PeriodicalIF":0.8,"publicationDate":"2025-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144667941","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Beyond virus: Systematic review and meta-analysis on Impact of physical exercises on chikungunya sequelae of pain to functional restoration.","authors":"Abhishek Sharma, Aksh Chahal, Dinara Atajonova, Sardorbek Jumanazarov, Richa Hirendra Rai, Bartosz Maciej Wójcik, Nidhi Sharma","doi":"10.4103/jvbd.jvbd_94_25","DOIUrl":"https://doi.org/10.4103/jvbd.jvbd_94_25","url":null,"abstract":"<p><strong>Background objectives: </strong>Chikungunya virus (CHIKV) infection often results in persistent sequelae, including chronic pain and functional limitations, significantly impacting quality of life. Physical exercise is a potential intervention, but its efficacy remains unclear. This systematic review and meta-analysis aimed to evaluate the impact of physical exercises on chikungunya sequelae, focusing on pain reduction and functional restoration.</p><p><strong>Methods: </strong>We conducted a comprehensive search of electronic databases (PubMed, Scopus, Web of Science, and Cochrane Library) for last 10 years. Randomized Controlled Trials (RCTs) and quasi-experimental studies assessing the effects of physical exercise interventions on pain and functional outcomes in individuals with chikungunya sequelae were included. Data extraction encompassed study characteristics, intervention details, and outcome measures.</p><p><strong>Results: </strong>A total of 8 studies, involving 307 participants with mean age of 46.17±11.27 years met the inclusion criteria. Meta-analysis revealed that physical exercise interventions significantly reduced pain levels compared to control groups (p < 0.05). Furthermore, physical exercise demonstrated a significant improvement in functional outcomes (p < 0.05). Subgroup analyses indicated potential variations in effect sizes based on exercise type, duration, and intensity.</p><p><strong>Interpretation conclusion: </strong>Physical exercise interventions are effective in reducing pain and improving functional outcomes in individuals with chikungunya sequelae. These findings support the integration of structured exercise programs into the rehabilitation management of CHIKV-related chronic conditions. Further research is warranted to optimize exercise protocols for specific patient populations and long-term benefits.</p>","PeriodicalId":17660,"journal":{"name":"Journal of Vector Borne Diseases","volume":" ","pages":""},"PeriodicalIF":0.8,"publicationDate":"2025-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144667940","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Vector dynamics and Onchocerca infectivity status of Simulium damnosum complex at Arinta and Erin-Ijesha waterfalls, Southwest Nigeria.","authors":"Oluwadamilare Ganiu Dauda, Akinlabi Mohammed Rufai, Olabanji Ahmed Surakat, Zahra Oyindamola Iwalewa, Kamilu Ayo Fasasi, Monsuru Adebayo Adeleke","doi":"10.4103/jvbd.jvbd_40_25","DOIUrl":"https://doi.org/10.4103/jvbd.jvbd_40_25","url":null,"abstract":"<p><strong>Background objectives: </strong>Arinta and Erin-Ijesha are popular waterfalls in Southwest Nigeria where preliminary assessments identified blackfly activity, yet data on vector dynamics and Onchocerca infectivity remain unavailable. This study investigated these parameters to assess the risk of onchocerciasis transmission at both sites.</p><p><strong>Methods: </strong>Adult black flies were collected for three consecutive days in a month by two dark complexioned adult male human landing catchers from September 2023 to August 2024. For each hour of sampling, 20% of the catches were randomly selected and dissected in real-time to assess parity and infectivity using standard procedure. The remaining flies were morphologically identified as savannah and forest flies and were preserved for O-150 pool screening.</p><p><strong>Results: </strong>A total of 1,090 Simulium flies were caught, Arinta (n=1012) and Erin-Ijesha (n=78). The peak monthly biting rate (MBR) were 3160.0 (Arinta, September) and 289.3 (Erin-Ijesha, October) bites/person/month while the lowest MBRs were 72.3 (Arinta, July) and 0.0 (Erin-Ijesha, January to March, May, July and August) bites/person/month. The MBR at Arinta was significantly higher than at Erin-Ijesha (p=0.02). The Annual biting rate (ABR) at Arinta (10,231.8 bites/person/year) exceeded the WHO threshold of 1,000 bites/person/year, while below at Erin-Ijesha (790 bites/person/year). All morphologically examined flies were identified as forest species. No Onchocerca infectivity was detected in dissected or pool-screened (n = 857) flies.</p><p><strong>Interpretation conclusion: </strong>Findings suggest low risk of onchocerciasis transmission at both waterfalls, with blackflies merely constituting biting nuisance. Continued public health education of tourist is recommended to allay their fears on the public health risk posed by blackfly bites, along with the use of protective clothing and repellents.</p>","PeriodicalId":17660,"journal":{"name":"Journal of Vector Borne Diseases","volume":" ","pages":""},"PeriodicalIF":0.8,"publicationDate":"2025-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144553872","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Expanding the frontiers of Schistosomiasis Treatment: The promise of Nanoparticle-Based Therapies.","authors":"Gudibanda Nagaraja Bhuvana, Sai Mahima Umesh, Ramya Raghavan","doi":"10.4103/jvbd.jvbd_180_23","DOIUrl":"https://doi.org/10.4103/jvbd.jvbd_180_23","url":null,"abstract":"<p><p>Schistosomiasis is one of the most overlooked parasitic diseases worldwide. The new roadmap for neglected tropical diseases (2021-2030), adopted by the World Health Assembly, sets global goals for combating these diseases. eliminating Schistosomiasis. Current treatment options for Schistosomiasis, such as Praziquantel, are limited. Nanoparticle-based treatments and vaccines have shown promise in overcoming the limitations of Praziquantel therapy by offering targeted and sustained drug delivery. We advocate prioritizing and enhancing funding and collaboration for nanoparticle research targeting Schistosomiasis. By investing in these innovative solutions in regions most impacted by Schistosomiasis, we have the potential to alleviate the treatment burden and enhance patient adherence. This review paper explores nanotechnological solutions, current trends, and long-term outcomes.</p>","PeriodicalId":17660,"journal":{"name":"Journal of Vector Borne Diseases","volume":" ","pages":""},"PeriodicalIF":0.8,"publicationDate":"2025-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144637440","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Localized Bullous Eruption caused by mosquitoes: Report of 16 patients and review of the literature.","authors":"Stefano Veraldi, Rossana Schianchi, Italo Francesco Aromolo, Gianluca Nazzaro","doi":"10.4103/jvbd.jvbd_198_24","DOIUrl":"https://doi.org/10.4103/jvbd.jvbd_198_24","url":null,"abstract":"","PeriodicalId":17660,"journal":{"name":"Journal of Vector Borne Diseases","volume":" ","pages":""},"PeriodicalIF":0.8,"publicationDate":"2025-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144553840","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}