evidence: It has been reported that some parents refuse the injection because they are concerned about ingredients in the shot, which the parents call "toxins." One way to alleviate this concern is to ask your hospital if they have the preservative-free version of Vitamin K. [...] However, these fears still persist in the general public. In fact, some of the children in Tennessee who developed life-threatening VKDB did not receive Vitamin K because their parents thought that the shot could cause leukemia. This is not surprising, given that rumors, myths, and non-evidence based information about Vitamin K run rampant on the internet. For example, I found a 2013 blog article on a very popular natural health website, claiming that your child’s chance of getting leukemia from the Vitamin K shot is 1 in 500. The same article, as well as others, lists the side effects of intravenous Vitamin K and state that your child is at risk for these side effects if they receive the Vitamin K shot. These authors do not even understand the difference between intravenous and intramuscular injections. And yet parents all over the world are reading information from these websites and making important health decisions based on misleading and inaccurate claims.