November 5, 2025

Opinion: Watch out for those bacteria-carrying flies!

A new bacterial species discovered in Brazil

A new species of bacteria has been uncovered in Brazil, genetically resembling two other bacteria found in the Andes that can cause diseases when transmitted by sand flies. In a recent study published in Acta Tropica, scientists revealed the presence of this new bacteria in phlebotomine sandflies in the Amazonas National Park in Pará, Brazil. This newly discovered bacterial species belongs to the same genus as the disease-causing bacteria Bartonella bacilliformis and Bartonella ancashensis from Peru. While there is no evidence yet that the new species causes diseases in Brazil, further research is needed to determine its potential impact.

Signs of adaptation and concern

Eunice Aparecida Bianchi Galati, a co-author of the study, highlighted the importance of the discovery by suggesting that the bacteria causing Carrion’s disease and Peruvian wart in the Andes might adapt to non-Andean species and spread to new areas. This raises concerns about the possible transmission of these diseases beyond their current range. Marcos Rogério André, another co-author, emphasized the need for increased awareness and monitoring of bartonellosis, especially in regions with limited access to healthcare services. Researchers urge for collaborative efforts between physicians and scientists to investigate the presence of Bartonella bacteria in patients with unexplained fever and other symptoms.

Continuous research for a better understanding

The study conducted in the Amazonas National Park sheds light on the presence of a previously undocumented strain of Bartonella in Brazil. Despite similarities to known disease-causing bacteria, more research is essential to determine the potential health risks associated with this new species. Researchers aim to uncover the true prevalence of Bartonella-related diseases and explore possible co-infections with other pathogens. By working together, healthcare professionals and scientists can enhance their understanding of these bacteria and improve diagnostic and treatment strategies for affected individuals.

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