Some of the US Food and Drug Administration’s vaccine advisors seemed comfortable with permitting the agency to allow heterologous boosting of COVID-19 vaccines at a 15 October meeting, with a few expressing an urgency for the decision to be made, likely giving the agency enough support to move forward with an adjustment to the relevant emergency use authorizations without additional data.
The Vaccines and Related Biological Products Advisory Committee heard a presentation on study results from the National Institutes of Health...







