Pa. COVID-19 Positivity Rate Increases as UK Variant Spreads

Almost all positive COVID-19 tests in Pa. with S-Gene Target Failure (SGTF) are now considered to be the more contagious U.K. variant B.1.1.7. The percentage of COVID-19 tests that are positive stopped declining and started rising as the percentage of positive tests with SGTF rose beyond 10%.

 Cases have been rising in Pa. since March 10 
 Pa. positivity rate (% of COVID-19 tests that were positive)  
 Percentage of positive COVID-19 tests conducted by Helix that had SGTF  

Data is graphed by week. Helix data only available through March 18.
Chart: CHRIS A. WILLIAMS / Staff Source: Helix COVID-19 Dashboard and Pa. Department of Health