The Centers for Disease Control has approved a fourth Covid-19 mRNA booster shot for people 18 and over
A Michigan couple who received both mRNA injections before dying of Covid-19 are not considered "fully vaccinated" because they didn't receive the booster
A health expert says Covid-19 will be around forever and people should "get used to" taking endless booster vaccines
Americans who received 2 doses of Covid-19 messenger RNA vaccines are no longer "fully vaccinated," according to new guidance from the CDC
The Biden Administration is recommending Covid-19 mRNA booster shots for all Americans eight months after they are fully vaccinated