Johnson & Johnson: Second COVID-19 vaccine shot boosts protection

Johnson & Johnson said a second shot of their COVID-19 vaccine increases protection from infection exponentially. It comes as a decision on booster shots for people 65 and older — who received the Pfizer vaccine — could come as soon as Wednesday. Federal health officials are expected to meet starting Wednesday to decide whether to approve Pfizer booster shots for those 65 and over. A booster for the J&J vaccine is also looking more likely after new research just released.