Why Sewickley Heights had a shockingly high case rate of covid-19
On paper, Sewickley Heights has had one of the highest case rates of covid-19 in Allegheny County. In early January, the borough of roughly 800 residents had about 307 positive cases — a case rate of 3,700 per 10,000 residents, or 37%. Nationally, the rate was 7.5% on Jan. 25....