Study finds third dose of COVID-19 vaccine is crucial for immunocompromised patients

Because the immune systems of people with inborn errors of immunity (IEI) don't function like everyone else's, it was unclear until now how well COVID-19 vaccinations protected them. In a new study, posted on the medRxiv preprint server, scientists have identified that even IEI patients who usually fail to produce the usual neutralizing antibodies used to measure vaccine success benefited from three COVID-19 vaccine doses.