COVID-19 test positivity rate rises to 10% in Allegheny County; over 100 new cases for 4th day WPXI PittsburghAllegheny County Closes Bars, Restaurants, Casinos And All Activities That Involve Over 25 People For One Week CBS PittsburghThese 10 counties had highest rates of new coronavirus cases in Pennsylvania this week LancasterOnlineAllegheny County reports 177 new covid-19 cases, 5 new hospitalizations TribLIVEPa.