Booster ShotsSouth Africa’s health regulator asked its government on Saturday to lift a pause on the Johnson & Johnson shots provided certain conditions are met.Separately, Fauci, a top adviser to President Joe Biden, said officials would determine “soon" -- likely by the end of summer -- whether people who’ve been vaccinated against Covid may need to get booster shots or new vaccines aimed at emerging strains.Officials with vaccine makers Moderna and Pfizer have indicated that a booster dose may be required, or that the Covid vaccines become annual events like flu shots, but Fauci on NBC said that such a call would be a “public health decision."“It’s not going to be a decision that’s going to be made by a pharmaceutical company," he said..