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Updated: Feb 17, 2026

Propagation of the Microsporidian Parasite Edhazardia aedis in Aedes aegypti Mosquitoes
Published on: August 13, 2020
Aedes aegypti breeding site in an underground rainwater reservoir: a warning
Patricia Marques Moralejo Bermudi1, Fernanda Kowalski1, Marcela Mori Menzato1
1Universidade de São Paulo. Faculdade de Saúde Pública. Curso de Graduação em Saúde Pública. São Paulo, SP, Brasil.
Abstract:
We describe the discovery of Aedes aegypti underground breeding site in the Pinheiros neighborhood of São Paulo, SP, during an entomological survey program performed in 2016. Even with intense surveillance and vector control, large numbers of mosquitoes were present in this area. A detailed investigation allowed for the detection of Ae. aegypti in an underground reservoir used for rainwater storage. After the implementation of protection screens in the accesses, the presence of the vector was no longer detected. In this study, we discuss the frequent use of this type of reservoir structure and its risk for mosquito production.

