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Local COVID-19 Surveillance

The Windsor-Essex County Health Unit (WECHU) conducts mosquito surveillance from mid-May until mid-October every year. Once a week, 47 mosquito traps are set across Windsor and Essex County (WEC) to collect mosquitoes for identification and viral testing. This dashboard reports ongoing data.


A pandemic occurs when an infectious disease spreads throughout the global population. Often, pandemics arise from a new strain of influenza. Since the virus is new, the human population is likely to have little, to no, immunity against it.