A CBS-17 report recognizes a hospital in Israel studying the safety and effectiveness of a second booster dose for some medical workers who got their last shot at least four months ago.
One of the key concerns raised by the fourth-dose concept is that it might cause more harm than good by wearing out the immune system. But doctors say this shouldn’t be much of a concern at all.
“There’s really no reason why the immune system would become fatigued or not be able to respond,” said Cindy Gay, MD, assistant professor in the division of infectious diseases.