Trump wants MMR vaccine split up: the science behind why it’s a bad idea

TL;DR - Nature reports that splitting the combined MMR vaccine into separate childhood injections is unsupported by evidence and could delay protection while increasing families’ costs.

• Numerous studies support keeping measles, mumps, and rubella vaccination combined.
• Separate injections would leave children unprotected for longer.
• Additional appointments and doses could raise costs for families.
• The provided excerpt does not include specific study designs or quantitative results.