ArticleRevista da Sociedade Brasileira de Medicina Tropical2026
Investigation of a Suspected Autochthonous Cholera Case in Brazil After an 18-Year Absence of Reported Cases.
Article in Revista da Sociedade Brasileira de Medicina Tropical, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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15 authors.
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Abstract
Cholera has caused multiple pandemics and remains a significant global public health threat. After 18 years without autochthonous transmission in Brazil, a 60-year-old man with no travel history presented with abdominal discomfort and acute watery diarrhea. Laboratory testing detected Vibrio cholerae O1 Ogawa, prompting classification as a suspected cholera case. However, genomic analysis showed that the strain lacked the toxigenic virulence factor required to cause cholera, leading to its reclassification as a non-cholera case. This investigation highlights the importance of clinical suspicion, advanced laboratory diagnostics, and continuous epidemiological surveillance for accurate case identification and an appropriate public health response.
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