ArticleBMC medicine2018
Migration and tuberculosis transmission in a middle-income country: a cross-sectional study in a central area of São Paulo, Brazil.
Article in BMC medicine, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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Who cites it
12 citing papers in PubMed.
- A scoping review of the available literature on the epidemiologic profile of migrants in-transit through South America, Central America, and Mexico from 2013-2025.Journal of migration and health · 2026Review
- Tuberculosis and the climate crisis in Latin America: a predicament of poverty, migration and displacement.BMJ global health · 2025Article
- Article
- Global epidemiology of Mycobacterium tuberculosis lineage 4 insights from Ecuadorian genomic data.Scientific reports · 2025Article
- Molecular typing of Mycobacterium tuberculosis: a review of current methods, databases, softwares, and analytical tools.FEMS microbiology reviews · 2025Review
- Tuberculosis in transit: risk factors in Tanzania's high-mobility border regions.The Pan African medical journal · 2025Article
- Modeling tuberculosis transmission flow in China, 2010-2012.BMC infectious diseases · 2024Article
- Evidence on tuberculosis in migrants at Brazil's international borders: A scoping review.Journal of migration and health · 2023Article
- High SARS-CoV-2 seroprevalence in persons experiencing homelessness and shelter workers from a day-shelter in São Paulo, Brazil.PLoS neglected tropical diseases · 2021Article
- Spatial clustering and temporal trend analysis of international migrants diagnosed with tuberculosis in Brazil.PloS one · 2021Article
- Molecular epidemiology of Mycobacterium tuberculosis in Brazil before the whole genome sequencing era: a literature review.Memorias do Instituto Oswaldo Cruz · 2021Review
- Improving access to multi-drug resistant tuberculosis diagnostic and health services for refugees and migrants.BMC medicine · 2018Article
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Authors and funding
7 authors.
Funding
Abstract
backgroundLittle is known about the impact of growing migration on the pattern of tuberculosis (TB) transmission in middle-income countries. We estimated TB recent transmission and its associated factors and investigated the presence of cross-transmission between South American migrants and Brazilians.
methodsWe studied a convenient sample of cases of people with pulmonary TB in a central area of São Paulo, Brazil, diagnosed between 2013 and 2014. Cases with similar restriction fragment length polymorphism (IS6110-RFLP) patterns of their Mycobacterium tuberculosis complex isolates were grouped in clusters (recent transmission). Clusters with both Brazilian and South American migrants were considered mixed (cross-transmission). Risk factors for recent transmission were studied using logistic regression.
resultsIsolates from 347 cases were included, 76.7% from Brazilians and 23.3% from South American migrants. Fifty clusters were identified, which included 43% South American migrants and 60.2% Brazilians (odds ratio = 0.50, 95% confidence interval = 0.30-0.83). Twelve cross-transmission clusters were identified, involving 24.6% of all clustered cases and 13.8% of all genotyped cases, with migrants accounting for either an equal part or fewer cases in 11/12 mixed clusters.
conclusionsOur results suggest that TB disease following recent transmission is more common among Brazilians, especially among those belonging to high-risk groups, such as drug users. Cross-transmission between migrants and Brazilians was present, but we found limited contributions from migrants to Brazilians in central areas of São Paulo and vice versa.
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