Matheus Oliveira de Almeida, Rosa Camila Lucchetta, Sebastian Vernal, Carlos Graeff Teixeira
{"title":"A systematic review of comparative accuracy studies of the Kato-Katz and spontaneous sedimentation methods for schistosomiasis diagnosis.","authors":"Matheus Oliveira de Almeida, Rosa Camila Lucchetta, Sebastian Vernal, Carlos Graeff Teixeira","doi":"10.1590/0037-8682-0335-2025","DOIUrl":"https://doi.org/10.1590/0037-8682-0335-2025","url":null,"abstract":"<p><strong>Background: </strong>Although alternatives to the Kato-Katz (KK) method for the diagnosis of schistosomiasis are not widely available, other egg detection methods may have a role, especially considering the immediate need for confirmatory diagnosis and management of individual patients. One such widely available and easy-to-perform option is the Lutz method. We aimed to compare the diagnostic accuracy of KK and Lutz to support clinical decision-making.</p><p><strong>Methods: </strong>We conducted a systematic review searching PUBMED, EMBASE, and LILACS databases. We included primary diagnostic accuracy studies comparing KK and Lutz. No restriction was imposed on the type of test used as the reference standard. QUADAS-2 and QUADAS-C tools were used to assess the risk of bias and applicability, and GRADE was used to assess the certainty of evidence. The primary outcomes were sensitivity and specificity. Due to clinical and methodological heterogeneity, a meta-analysis was not performed.</p><p><strong>Results: </strong>Out of 1,060 citations, three studies were included in our review. The studies were cross-sectional and conducted in Brazil and Ethiopia. The sensitivity of Lutz ranged from 0.34 to 0.81, while that of KK ranged from 0.64 to 0.84. Specificity for both tests ranged from 0.81 to 1.0, with no significant differences observed between the diagnostic tests evaluated. Limitations included inconsistent reference standards, lack of blinding, and small sample sizes. The certainty of evidence ranged from very low to moderate.</p><p><strong>Conclusions: </strong>Data on the relative accuracy of the KK and Lutz methods for schistosomiasis diagnosis are limited. The current evidence is insufficient to determine the best method.</p>","PeriodicalId":21199,"journal":{"name":"Revista da Sociedade Brasileira de Medicina Tropical","volume":"59 ","pages":"e03352025"},"PeriodicalIF":2.3,"publicationDate":"2026-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13089450/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147779175","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}
Gabriele Zaine Teixeira Debortoli, Victor Luiz Gomes Batista, Fernanda Batista Santos, Lucas Mendes Diniz, Pedro Augusto Batista Silva, Valentine Tavares Ferreira, Carlos Augusto Dos Santos Sousa, Katia Denise Saraiva Bresciani, Ricardo Andrade Barata, Thaís Rabelo Santos-Doni
{"title":"Phlebotomine sand flies (Diptera: Psychodidae, Phlebotominae) fauna in Unaí, State of Minas Gerais, Brazil.","authors":"Gabriele Zaine Teixeira Debortoli, Victor Luiz Gomes Batista, Fernanda Batista Santos, Lucas Mendes Diniz, Pedro Augusto Batista Silva, Valentine Tavares Ferreira, Carlos Augusto Dos Santos Sousa, Katia Denise Saraiva Bresciani, Ricardo Andrade Barata, Thaís Rabelo Santos-Doni","doi":"10.1590/0037-8682-0290-2025","DOIUrl":"https://doi.org/10.1590/0037-8682-0290-2025","url":null,"abstract":"<p><strong>Background: </strong>Leishmaniasis, a neglected disease caused by Leishmania protozoa, is transmitted by phlebotomine sand flies and has a significant public health impact. The municipality of Unaí, Minas Gerais, reports human and canine cases of leishmaniasis; however, entomological data remain limited. This study aimed to describe the local phlebotomine sand fly fauna and environmental and climatic factors influencing its occurrence.</p><p><strong>Methods: </strong>Sampling was conducted monthly from January to December 2024 in ten households distributed across seven neighborhoods of Unaí. HP light traps were installed in both intradomestic and peridomestic regions. The captured specimens were morphologically identified and statistically analyzed to assess their association with environmental and climatic variables using mixed-effects linear models.</p><p><strong>Results: </strong>Overall, 504 phlebotomine sand flies, representing 11 species, were captured. Lutzomyia longipalpis (39.7%) was the most abundant species, followed by Ev. lenti (33.3%) and Ny. intermedia (15.3%). The peridomestic areas exhibited greater species diversity and abundance, particularly in the presence of chicken coops, organic matter, and vegetation. Temperature is positively associated with Lu. longipalpis and Ev. lenti, whereas precipitation negatively affected Ny. intermedia. Males comprised 69.8% of captured specimens, suggesting the presence of active breeding sites near the households.</p><p><strong>Conclusions: </strong>This study provides the first record of the phlebotomine sand fly fauna in Unaí. Environmental conditions favor vector species in settings with close human-animal interactions, increasing the risk of domiciliary transmission. These findings highlight the importance of sustained entomological surveillance and environmental management measures as complementary strategies to control leishmaniasis.</p>","PeriodicalId":21199,"journal":{"name":"Revista da Sociedade Brasileira de Medicina Tropical","volume":"59 ","pages":"e02902025"},"PeriodicalIF":2.3,"publicationDate":"2026-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13089451/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147779464","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":"Dr. João Carlos Pinto Dias, master and mentor! (ê1948 †2021).","authors":"Liléia Gonçalves Diotaiuti","doi":"10.1590/0037-8682-0076-2026","DOIUrl":"https://doi.org/10.1590/0037-8682-0076-2026","url":null,"abstract":"","PeriodicalId":21199,"journal":{"name":"Revista da Sociedade Brasileira de Medicina Tropical","volume":"59 ","pages":"e00762026"},"PeriodicalIF":2.3,"publicationDate":"2026-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13089445/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147779232","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}
Sonay Aydin, Zulaika Askarbek Kyzy, Kemal Bugra Memis
{"title":"A rare cause of portal vein thrombosis: Fascioliasis.","authors":"Sonay Aydin, Zulaika Askarbek Kyzy, Kemal Bugra Memis","doi":"10.1590/0037-8682-0026-2026","DOIUrl":"https://doi.org/10.1590/0037-8682-0026-2026","url":null,"abstract":"","PeriodicalId":21199,"journal":{"name":"Revista da Sociedade Brasileira de Medicina Tropical","volume":"59 ","pages":"e00262025"},"PeriodicalIF":2.3,"publicationDate":"2026-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13089446/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147779207","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}
Tatiane Fernandes Portal de Lima Alves da Silva, Walter Massa Ramalho, Henry Maia Peixoto, Marco Aurélio de Valois Correia Junior, André Luiz Sá de Oliveira
{"title":"Temperature as a Climate Variable in Dengue Epidemiological Studies.","authors":"Tatiane Fernandes Portal de Lima Alves da Silva, Walter Massa Ramalho, Henry Maia Peixoto, Marco Aurélio de Valois Correia Junior, André Luiz Sá de Oliveira","doi":"10.1590/0037-8682-0481-2025","DOIUrl":"https://doi.org/10.1590/0037-8682-0481-2025","url":null,"abstract":"","PeriodicalId":21199,"journal":{"name":"Revista da Sociedade Brasileira de Medicina Tropical","volume":"59 ","pages":"e04812025"},"PeriodicalIF":2.3,"publicationDate":"2026-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13089447/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147779550","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}
Dionatas Ulises de Oliveira Meneguetti, Gilberto Gilmar Moresco, Janis Lunier de Souza, Márcio Fernandes de Amorim, Fernanda Portela Madeira
{"title":"First report of immature forms of Anopheles albitarsis s.l. (Diptera: Culicidae) collected in artificial containers in an urban area of the state of Acre, Western Brazilian Amazon.","authors":"Dionatas Ulises de Oliveira Meneguetti, Gilberto Gilmar Moresco, Janis Lunier de Souza, Márcio Fernandes de Amorim, Fernanda Portela Madeira","doi":"10.1590/0037-8682-0536-2025","DOIUrl":"10.1590/0037-8682-0536-2025","url":null,"abstract":"<p><strong>Background: </strong>This study reports the first documented occurrence of immature forms of Anopheles albitarsis in artificial breeding sites within an urban area of Acre, Brazil.</p><p><strong>Methods: </strong>Second-instar larvae were collected from a water tank.</p><p><strong>Results: </strong>The collected larvae were identified as Anopheles albitarsis, representing the first report of this species in artificial breeding sites in an urban area of Acre.</p><p><strong>Conclusions: </strong>The detection of immature forms in artificial containers suggests potential adaptation of the vector to urban settings and highlights concerns regarding the increased risk of malaria transmission in areas previously regarded as low-risk.</p>","PeriodicalId":21199,"journal":{"name":"Revista da Sociedade Brasileira de Medicina Tropical","volume":"59 ","pages":"e05362025"},"PeriodicalIF":2.3,"publicationDate":"2026-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13073504/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147691980","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}
Melissa Reyes Hernández, Ana García Suarez, Hernando Pinzón Redondo, Carlos Moneriz
{"title":"Sickle cell disease implicated in the development of severe dengue: A pediatric case series.","authors":"Melissa Reyes Hernández, Ana García Suarez, Hernando Pinzón Redondo, Carlos Moneriz","doi":"10.1590/0037-8682-0081-2026","DOIUrl":"10.1590/0037-8682-0081-2026","url":null,"abstract":"<p><p>Dengue poses a considerable risk to individuals with sickle cell disease. This report presents six cases of male pediatric patients (mean age 9.7 ± 4.8 years) with a hemoglobin S mutation, all of whom exhibited clinical manifestations consistent with dengue infection. Diagnosis was confirmed using NS1 antigen, serology (IgM/IgG), and RT-PCR, identifying all cases as dengue virus serotype 2. All patients had warning signs at presentation; three were severe, four required intensive care, and one died from dengue shock. Early identification and management are critical to reduce mortality in children with hemoglobin S mutations during dengue epidemics.</p>","PeriodicalId":21199,"journal":{"name":"Revista da Sociedade Brasileira de Medicina Tropical","volume":"59 ","pages":"e00812026"},"PeriodicalIF":2.3,"publicationDate":"2026-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13073497/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147691783","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":"Primary isolated tuberculous colitis of the ascending colon.","authors":"Elif Gündoğdu","doi":"10.1590/0037-8682-0012-2026","DOIUrl":"10.1590/0037-8682-0012-2026","url":null,"abstract":"","PeriodicalId":21199,"journal":{"name":"Revista da Sociedade Brasileira de Medicina Tropical","volume":"59 ","pages":"e00122026"},"PeriodicalIF":2.3,"publicationDate":"2026-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13073506/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147691479","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}
Adjoane Maurício Silva Maciel, Carla Magda Allan Santos Domingues, Anderson Fuentes Ferreira, Ana Paula França, Nádia Maria Girão Saraiva de Almeida, Maria Vaudelice Mota, José Cássio de Moraes, Alberto Novaes Ramos
{"title":"Prevalence and factors associated with non-vaccination: a vaccination coverage survey among children born in Ceará, Brazil, 2017-2018.","authors":"Adjoane Maurício Silva Maciel, Carla Magda Allan Santos Domingues, Anderson Fuentes Ferreira, Ana Paula França, Nádia Maria Girão Saraiva de Almeida, Maria Vaudelice Mota, José Cássio de Moraes, Alberto Novaes Ramos","doi":"10.1590/0037-8682-0270-2025","DOIUrl":"10.1590/0037-8682-0270-2025","url":null,"abstract":"<p><strong>Background: </strong>The current prevalence and factors associated with non-vaccination in children born between 2017 and 2018, considering vaccination status up to 24 months of age in the State of Ceará, should be assessed to justify the need to identify the population eligible for timely vaccination with valid doses to ensure optimal protection against vaccine-preventable diseases. This study aimed to estimate the prevalence and analyze the sociodemographic factors associated with non-vaccination among children born between 2017 and 2018 residing in Fortaleza and Sobral, Ceará State, Northeast Brazil.</p><p><strong>Methods: </strong>A population-based household survey of the 2017-2018 birth cohort was conducted using cluster sampling in Fortaleza and Sobral. The prevalence of non-vaccination, including no-dose and incomplete-dose categories, was estimated using prevalence ratios from Poisson regression with robust variance and survey design adjustment.</p><p><strong>Results: </strong>Of the children, 54.55% were not fully vaccinated, and 9.91% did not receive a single valid dose of any vaccine (Fortaleza: 10.46%; Sobral: 2.71%). Missing doses were mainly for meningitis (29.14%), rotavirus diarrhea (25.46%), and pneumonia and meningitis (24.44%). Non-vaccination was associated with maternal ethnicity, specifically White (Caucasian) (aPR, 2.07; 95% CI, 1.08-3.94; p = 0.028), and with the use of private vaccination services (aPR, 1.72; 95% CI, 1.46-2.04; p < 0.001).</p><p><strong>Conclusions: </strong>Non-vaccination was highly prevalent among children born between 2017 and 2018 in Ceará. The findings highlight the need to strengthen and reorient vaccination efforts across sectors and to implement catch-up strategies for children who missed valid doses.</p>","PeriodicalId":21199,"journal":{"name":"Revista da Sociedade Brasileira de Medicina Tropical","volume":"59 ","pages":"e02702025"},"PeriodicalIF":2.3,"publicationDate":"2026-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13073500/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147691455","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}