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Harris County's MVC Division prevents and controls mosquito-borne diseases using an Integrated Vector Management approach.
Citywide — Harris County. Treatment areas shift based on disease activity and reports. You can check an online map to see where spraying is planned near you.
Mosquitoes in the Houston area can carry serious illnesses like West Nile virus and other diseases. The MVC Division monitors disease activity and acts fast to lower your risk before problems spread.
Harris County government serves over 4.7 million residents across the greater Houston area. The county provides essential services including public health, flood control, law enforcement, road infrastructure, and the justice system through its Commissioners Court and county departments.
The civic web
The Resource Center maps the services, programs, and benefits across the city — and the people behind them.