Isolation of Salmonella spp. in cattle egrets ( Bubulcus ibis ) from Fernando de Noronha Archipelago, Brazil

A study on the Brazilian Atlantic Islands revealed that cattle egrets (Bubulcus ibis) may serve as reservoirs for Salmonella, posing risks to public health and biological diversity. Researchers isolated four serovars of Salmonella enterica subspecies enterica—S. Typhimurium, S. Newport, S. Duisburg, and S. Zega—from cloacal swabs collected from 456 clinically healthy cattle egrets in Fernando de Noronha Archipelago. Additionally, one sample was identified as S. enterica O16:y:-. The findings suggest that these birds could transmit pathogens to humans, livestock, and native wildlife, highlighting the need for further monitoring and mitigation strategies.

Silva, M. A., Fernandes, É. F. S. T., Santana, S. C., Marvulo, M. F. V., Barros, M. R., Vilela, S. M. O., Reis, E. M. F., Mota, R. A., & Silva, J. C. R. (2018). Isolation of Salmonella spp. in cattle egrets ( Bubulcus ibis ) from Fernando de Noronha Archipelago, Brazil. Brazilian Journal of Microbiology, 49(3), 559–563. https://doi.org/10.1016/j.bjm.2018.01.004