Pfizer, AstraZeneca Covid Vaccines Less Effective Against Delta Variant: Oxford-led Study
The researchers, however, noted that with Delta, PfizerBioNTech vaccine and OxfordAstraZeneca preventive, known as Covishield in India, still offer good protection against new infections.
from Top India News- News18.com https://ift.tt/3sxGDkB
from Top India News- News18.com https://ift.tt/3sxGDkB
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