> Not for any known negative reason though. The WHO is fine with it, and so is the UK, Spain, and Germany (among others).
This is literally fake news.[1]
βItβs a little bit of a dangerous trend here. We are in a data-free, evidence-free zone as far as mix and match,β Soumya Swaminathan told an online briefing.[2]
The scientist in question is warning against INDIVIDUALS mixing and matching, and saying public health agencies should make the decision.
Which makes sense because while there is no evidence against mixing and matching, there is not very strong evidence in favor either.
So the mix and match should only be done at the guidance of a public health agency which might, for example, recognize that due to a constraint in the supply of Moderna doses, they may be better off taking the slight risk that mixing might cause some issues in a small number of people (again there is no evidence that this is the case), than the much greater risk caused by a large percentage of the population not being fully vaccinated.
The CDC therefore does not recommend mixing because over the past few months the US has acquired enough doses to vaccinate everybody in the country which is not the case for all but a handful of other countries.
This is literally fake news.[1]
βItβs a little bit of a dangerous trend here. We are in a data-free, evidence-free zone as far as mix and match,β Soumya Swaminathan told an online briefing.[2]
[1]https://globalnews.ca/news/8021692/mixing-covid-19-vaccines-... [2]https://www.reuters.com/business/healthcare-pharmaceuticals/...