How worried should Allegheny County residents be about the Delta variant?

The Delta variant is a strain of COVID-19 that was first detected in India, where it quickly became the dominant strain. It has been identified in 85 countries and is spreading rapidly among unvaccinated populations. Between May 8 and June 5, the Delta variant jumped from representing 1.3% of new cases in the United States … Continue reading How worried should Allegheny County residents be about the Delta variant?