Questions about how long the immunity from vaccines will last continue and whether people will need booster shots at some point.
WATCH FULL EPISODES OF WORLD NEWS TONIGHT:
https://abc.com/shows/world-news-tonight
WATCH WORLD NEWS TONIGHT ON HULU:
https://bit.ly/3iQLwPp
#WorldNewsTonight #COVID-19 #BoosterShots #Vaccines #Immunity #HealthAgencies
Original source (ABC/Youtube)