The World Health Organization (WHO) has been urging people all over the world to not “mix and match” different kinds of vaccines from different companies, which is something Canadian authorities have been publicly promoting as safe and effective. The WHO’s position is that there is too little data to determine how safe or dangerous mixing doses may be, or how effective it may be. Soumya Swaminathan, the WHO’s head scientist, said on video on Monday during a conference, according to Reuters: “It’s a little bit of a dangerous trend here. We are in a data-free, evidence-free zone as far as mix and match.” “It will be a chaotic situation in countries if citizens start deciding when and who will be taking a second, a third and a fourth dose.” According to another press release from the WHO, “WHO has not issued any such statements [about mixing vaccines] and the attribution is false. Such misinformation can lead to grave consequences for the public.” Dr. Tam, on the other hand, apparently is not on board with the WHO on this issue.