Half doses, third doses, kids’ doses: Covid vaccine delivery goes next-level difficult

Sorting all this out will fall to pharmacies, immunization programs, pediatricians, and vaccine administrators, many already stretched thin, who will also have to track inventory and try to minimize waste. It will be a quick turnaround, as well: As soon as the CDC checks the final box for boosters with its recommendations, people will start demanding them. FDA leadership acknowledged all this will pose challenges. “Although it is not simple, it also is not utterly hopelessly complex,” Peter Marks, director of FDA’s Center for Biologics Evaluation and Research, said Wednesday on a call with reporters after the agency issued the new (Moderna and J&J) and revised (Pfizer) emergency authorizations.