from FOX News https://ift.tt/3i0c7v8
WHO warns against COVID-19 vaccine 'mix and match' approach
A top scientist at the World Health Organization warned Monday against mixing and matching COVID-19 vaccines amid uncertainty over safety and efficacy.
from FOX News https://ift.tt/3i0c7v8
from FOX News https://ift.tt/3i0c7v8
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