Monday’s announcement by the Republican president calls for separating combination shots — including the measles, mumps and rubella, or MMR, vaccine — into separate injections. Drugmakers would need to revive a slate of individual vaccines that have not been widely used in the U.S. for decades. They would also have to spend tens of millions of dollars on new studies and manufacturing facilities, capable of producing millions more vaccine doses than the nation currently uses.
For parents, it would mean returning to the doctor’s office many more times than is currently needed. Those appointments could also strain pediatricians who typically administer the shots, while driving up costs tied to syringes and other medical supplies.
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