2021 Covid Outbreak in Delhi Shows Herd Immunity Against Delta Variant Difficult: Study
The researchers found that the Delta variant was able to infect people who had previously been infected by SARS-CoV-2.
from Top India News- News18.com https://ift.tt/2YU11BG
from Top India News- News18.com https://ift.tt/2YU11BG
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