Mr Trump claimed in California, a Democratic-led US State, one in 12 boys are being diagnosed with autism. “I think I can say that there are certain groups of people that don’t take vaccines and who don’t take any pills that have no autism,” Mr Trump said. “So taking Tylenol is.... ahhhh... not good. Mr Trump said women should not take Tylenol throughout their entire pregnancy, adding that parents should reconsider giving the drug to children unless necessary. Turning to vaccines, Mr Trump said that parents should spread out injections over four to five years.