FOR HISTORICAL PURPOSES ONLY
Information on this page is displayed for historical purposes only and is no longer being updated. As such, it may be out of date with recent developments or scientific research. CDC.gov and your state’s health department may offer additional guidance.
The information on our website is medically reviewed and accurate at the time of publication. Due to the changing nature of the COVID-19 pandemic, information may have since changed. CDC.gov and your state’s health department may offer additional guidance.