Katie Drummond, writing for The Verge:
Since around 1961, doctors in the US have used vitamin K injections to prevent Vitamin K deficiency bleeding (VKDB) in newborns. Infants are born with low levels of vitamin K, which is vital in helping blood coagulate, and they don't obtain sufficient levels of the vitamin during breastfeeding. That puts them at an increased risk of hemorrhage, which is precisely why the American Academy of Pediatrics has long recommended injections of the vitamin at birth: infants who don't receive it are 81 times more likely to experience VKDB.
This is what happens when you convince people that science isn't real and that 'freedom' and 'choice' are synonyms.
It is, and they aren't.