LSU Health Shreveport vaccine investigator encouraged with Pfizer announcement
SHREVEPORT, La. -- Pfizer announced today that its COVID-19 vaccine appears to be 90% effective at preventing participants from contracting the virus. |!| Shreveport
SHREVEPORT, La. -- Pfizer announced today that its COVID-19 vaccine appears to be 90% effective at preventing participants from contracting the virus. |!| Shreveport