Fig. 3.
Percentage of PCR positivity for Public Health Center referrals and direct walk-ins. Moving average of 7 days (including the 3 days before and after the index date) applied. COVID-19, coronavirus disease 2019; PCR, polymerase chain reaction.
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.