When we get a report of a person with possible Zika or other mosquito-borne virus infection (such as dengue fever), DOH local vector control staff may survey and/or treat areas around the case’s home or work to look for any mosquito problems in that area. Because a mosquito may travel up to 200 yards or more, this could cover several properties. When they survey those areas, they are looking for places with heavy mosquito activity. They especially keep an eye out for possible mosquito breeding grounds, such as puddles, spare tires, uncovered water catchment systems, etc., and provide information on what you can do to help.
The purpose of these surveys is solely to prevent the spread of Zika and other mosquito-borne illnesses. These DOH vector control teams are not issuing citations and are not investigating other issues, such as building permits, plants grown on the property (unless they find standing water in them), or immigration status.