Trickey Prannav Zone
Monday, December 13, 2021
China Reports Outbreak of COVID-19 New Delta Strain Sub-lineage AY.4' Cases
Delta strain sub-lineage AY.4 is stated to be more transmissible and carries a higher viral load than the original novel coronavirus.
from Top World News- News18.com https://ift.tt/3GHn5QC
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