To reduce the percent positivity, a community can work to reduce the coronavirus transmission. For a comprehensive list of CDC recommendations for prevention of COVID-19 transmission, visit CDC’s summary of guidance.
A community can also do more testing. When there is a positive test, make sure that isolation of infected persons is done to limit further transmission. Other prevention measures also help such as wearing a mask, washing hands frequently, social distancing, avoiding large gatherings, and cleaning and disinfecting commonly used surfaces regularly.