@article{article, keywords = {Contact Tracing, leprosy, tratamento}, author = {Sato C and Rodrigues T and Silva P and dos Santos ES and Xavier DR and Baptista I and Cortela DDCB and Ignotti E and Benevides Ferreira SM}, title = {Social school contacts of multibacillary leprosy cases in children living in the hyperendemic region of the Midwest of Brazil.}, abstract = {

OBJECTIVE: To analyze the prevalence of Mycobacterium leprae detection and the associated factors among social contacts in the school environment of multibacillary cases living in a hyperendemic municipality of the state of Mato Grosso.

METHODS: Cross-sectional study with 236 social contacts of multibacillary leprosy from public schools and residents in Cuiab{\'a} (Mato Grosso) in 2018. The sources of information were interviews and nasal swab tests for molecular analysis by polymerase chain reaction - PCR. For the prevalence ratio estimates, crude and adjusted analyses were performed using robust Poisson regression and their respective confidence intervals (95\% CI). The ArcGIS 9.1 software was used for the geographic distribution analyses.

RESULTS: The prevalence of detection of M. leprae in social contacts was 14\%. A total of 63.6\% of the schools surveyed had 5.1\% to 50\% of the social contacts of leprosy with positive PCR. The analysis of the geographic distribution in the neighborhoods showed a high prevalence of infection, being higher than 50\% in some localities. The highest proportion of positive results occurred in the northern region of the city and from a precarious socioeconomic class.

CONCLUSION: The results showed a high prevalence of detection of M. leprae among social contacts in areas with poor socioeconomic conditions. In these regions, there is a greater risk of infection and of getting sick.

}, year = {2021}, journal = {Jornal de pediatria}, month = {12/2021}, issn = {1678-4782}, url = {https://www.sciencedirect.com/science/article/pii/S0021755721001728?via\%3Dihub}, doi = {10.1016/j.jped.2021.11.009}, language = {eng}, }