Pittsburgh hospital officials say coronavirus appears less potent than before Fox NewsDoctors say covid-19 at UPMC is declining in virulence, infection levels TribLIVEUPMC doctor says COVID-19 has become ‘less prevalent’ and isn’t making people as sick PennLiveUPMC Says Coronavirus Might Not Be As Potent As It Was At Start Of Pandemic CBS PittsburghUPMC doctors say they’re seeing less severe COVID-19 cases since start of pandemic WPXI PittsburghView Full Coverage on Google News