Observer Reporter Commissioner in Pfizer vaccine trial doesn;t know if he received vaccine or placebo Pittsburgh Metro • Nov 10, 2020
New Castle News Pfizer says COVID-19 vaccine is looking 90 percent effective Pittsburgh Metro • Nov 10, 2020
CBS Local Pittsburgh Infectious Disease Expert Says Pfizer's News On Coronavirus Vaccine Is 'Very Encouraging' Pittsburgh Metro • Nov 10, 2020
UPI on Pennsylvania Dow climbs 834 points amid election results, positive vaccine trials Pennsylvania Non-Local Sources • Nov 9, 2020
The Reporter | Lansdale Pfizer says COVID-19 vaccine is looking 90% effective Philadelphia Metro • Nov 9, 2020
CBS Local Philadelphia President-elect Joe Biden Cautions US Faces 'Dark Winter,' Implores Americans To 'Wear A Mask' Philadelphia Metro • Nov 9, 2020
Philly Voice Pfizer's COVID-19 vaccine has higher effectiveness rate than expected Philadelphia Metro • Nov 9, 2020
Indiana Gazette Biden implores Americans to wear masks amid vaccine progress Pittsburgh Metro • Nov 9, 2020
Norristown Times Herald Biden implores Americans to wear masks amid vaccine progress Philadelphia Metro • Nov 9, 2020
PHL 17 | Philadelphia Pfizer says COVID-19 vaccine is looking 90% effective Philadelphia Metro • Nov 9, 2020
CBS Local Philadelphia 'In A Position Potentially To Be Able To Offer Some Hope': Pfizer Says COVID-19 Vaccine Is Looking 90% Effective Philadelphia Metro • Nov 9, 2020
Times Observer | Warren Pfizer says COVID-19 vaccine is looking 90% effective Pennsylvania Wilds • Nov 9, 2020
The Reporter | Lansdale Pfizer says COVID-19 vaccine is looking 90% effective Philadelphia Metro • Nov 9, 2020
Indiana Gazette Pfizer says early data signals COVID-19 vaccine is effective Pittsburgh Metro • Nov 9, 2020
Sharon Herald The Latest: Pfizer modifies protocol for virus vaccine study Great Lakes and Erie • Oct 12, 2020