You Want More Doctor Visits? Trump Has Just the Thing for You. A cartoon of exhausted-looking parents sitting in a doctor's office or health clinic, with a crying baby and a hollering toddler. Donald Trump has signed an executive order to make major changes to childhood vaccinations. For one thing, it would require the measles, mumps and rubella (MMR) vaccine to be broken into three separate shots—separate visits to the doctor. There is no justifiable health reason for this change beyond the unsupported claims of some anti-vaxxers. Trump’s order attempts to override the authority of the US Centers for Disease Control and Prevention (CDC). The order may not take effect, but if it does, you can thank Trump for the hardship it would bring. The main impact would likely be to help drain the bank accounts of young parents who would have more healthcare bills to pay and more time taken from work.