Extra Covid vaccine may help protect transplant patients

A small study offers the first hint that an extra dose of Covid-19 vaccines just might give some organ transplant recipients a needed boost in protection. Even as most vaccinated people celebrate a return to near normalcy, millions who take immune-suppressing medicines because of transplants, cancer, or other disorders remain in limbo — uncertain how protected they really are. It’s simply harder for vaccines to rev up a weak immune system. Monday’s study tracked just 30 transplant patients but it’s an important step toward learning if booster doses could help.