Mosquito Surveillance Saves Lives and Money

by Tanya Thomas on  October 30, 2010 at 11:03 AM Tropical Disease News
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A new study has suggested that cutting surveillance for mosquito-borne diseases may lead to an increase in both the number of human cases and the health costs when a disease outbreak occurs.

"Our analysis shows that halting mosquito surveillance can increase the management costs of epidemics by more than 300 times, in comparison with sustained surveillance and early case detection," said Vazquez-Prokopec of the University of Emory.

The research was prompted by a US government proposal to slash funding for the vector-borne disease program of the Centres for Disease Control and Prevention.

"This analysis provides scientific-based evidence of the need for more funding of mosquito surveillance, not less," said Uriel Kitron, a co-author of the study.

The study analysis used data from two outbreaks of dengue fever in Cairns, Australia, that occurred in 2003 and 2009.

A mathematical model was applied to the Cairns data to evaluate the economic impact of hypothetical epidemic curves, plotted against different response times.

A response within two weeks of the introduction of the pathogen was assumed to occur with active disease surveillance in place, and delays of six-to-eight weeks were assumed when active disease and vector surveillance were eliminated.

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