A importância do controle vetorial para o controle e eliminação de doenças transmitidas por vetores

26 de abril de 2020

The importance of vector control for the control and elimination of vector-borne diseases


Anne L.Wilson, Orin Courtenay, Louise A. Kelly-Hope, Thomas W. Scott,Willem Takken, Steve J. Torr, Steve Lindsay


Vector-borne diseases (VBDs)such as malaria, dengue, and leishmaniasis exert a huge burden of morbidity and mortality worldwide, particularly affecting the poorest of the poor. The principal method by which these diseases  arecontrolled is through  vector  control,which has along and distinguished history. Vector control,to a greater extent than drugs or vaccines, has been responsible for shrinking the map of many VBDs. Here, we describe the history of vector control programmes worldwide from  the late 1800s  to date. Pre 1940,vector control relied on a thorough understanding of vector ecology and epidemiology, and implementation of environmental management tailored to the ecology and behaviour of local vector species.This complex understanding  was replaced by a simplified dependency on a handful of insecticide-based tools, particularly for malaria control,without an adequate understanding of entomology and epidemiology  and without proper monitoring and evaluation. With the rising threat from insecticide-resistant vectors, global environmental change, and the need to incorporate more vector  control interventions to eliminate these diseases, we advocate for continued investment in evidence-based vector control. There is a need to return to vector  control approaches based on a thorough knowledge of the determinants of pathogen transmission, which utilise a range of insecticide and non–insecticide-based approaches in a locally tailored manner for more effective and sustainable vector control.

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