The United States has yet to recommend booster shots, but that may not be far off. “Those who are transplant patients, cancer chemotherapy, autoimmune diseases, that are on immunosuppressant regimens, those are the kind of individuals that if there’s going to be a third booster, which might likely happen, would be first among the vulnerable,” Anthony S. Fauci, the nation’s top infectious-disease expert, said during a CNN interview in late July.
