This virus has spread to at least 90 countries and is 50 per cent more transmissible than the alpha variant (the variant first identified in Kent), which is around 50 per cent more transmissible than the original coronavirus that caused the pandemic.
from Top India News- News18.com https://ift.tt/36RTT9R
COVID: Study Finds Lower Antibody Activity Against Delta Variant at Single Dose - but Vaccines Still Work
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July 22, 2021