The updated guidance by NACI is based on the emerging research from the United Kingdom and Spain that found matching and mixing Pfizer and AstraZeneca vaccines both safe and effective at preventing the virus.
from Jagran Josh https://ift.tt/34JSml2
The updated guidance by NACI is based on the emerging research from the United Kingdom and Spain that found matching and mixing Pfizer and AstraZeneca vaccines both safe and effective at preventing the virus.
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