Pyriproxyfen and the microcephaly epidemic in Brazil - an ecological approach to explore the hypothesis of their association
The microcephaly epidemic in Brazil generated intense debate regarding its causality, and one hypothesised cause of this epidemic, now recognised as congenital Zika virus syndrome, was the treatment of drinking water tanks with pyriproxyfen to control Aedes aegypti larvae. We present the results of a geographical analysis of the association between the prevalence of microcephaly confirmed by Fenton growth charts and the type of larvicide used in the municipalities that were home to the mothers of the affected newborns in the metropolitan region of Recife in Pernambuco, the state in Brazil where the epidemic was first detected. The overall prevalence of microcephaly was 82 per 10,000 live births in the three municipalities that used the larvicide Bti (Bacillus thuringiensis israelensis) instead of pyriproxyfen, and 69 per 10,000 live births in the eleven municipalities that used pyriproxyfen. The difference was not statistically significant. Our results show that the prevalence of microcephaly was not higher in the areas in which pyriproxyfen was used. In this ecological approach, there was no evidence of a correlation between the use of pyriproxyfen in the municipalities and the microcephaly epidemic.
Main Authors: | Albuquerque,Maria de Fatima P Militão de, Souza,Wayner V de, Mendes,Antônio da Cruz G, Lyra,Tereza M, Ximenes,Ricardo AA, Araújo,Thália VB, Braga,Cynthia, Miranda-Filho,Demócrito B, Martelli,Celina MT, Rodrigues,Laura C |
---|---|
Format: | Digital revista |
Language: | English |
Published: |
Instituto Oswaldo Cruz, Ministério da Saúde
2016
|
Online Access: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02762016001200774 |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
Similar Items
-
Zika virus infection three years after the microcephaly outbreak: A meeting report
by: Martelli,Celina Maria Turchi, et al.
Published: (2019) -
A new insight into the definition of microcephaly in Zika congenital syndrome era
by: Gonçalves,Fabiana Cristina Lima da Silva Pastich, et al.
Published: (2021) -
Microcephaly and Zika virus
by: Oliveira,Consuelo Silva de, et al.
Published: (2016) -
Susceptibility of Aedes aegypti populations to pyriproxyfen in the Federal District of Brazil
by: Carvalho,Bruno Lopes, et al.
Published: (2020) -
FAO Specifications and Evaluations for Agricultural Pesticides - PYRIPROXYFEN
by: FAO
Published: (2017)