Delhi outbreak highlights challenge of reaching herd immunity in face of Delta variantDiseases, Conditions, Syndromes News

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  • Post published:October 14, 2021
  • Post category:Uncategorized

The severe outbreak of COVID-19 in Delhi, India, in 2021 showed not only that the Delta variant of SARS-CoV-2 is extremely transmissible but that it can infect individuals previously infected by a different variant of the coronavirus, says a team of international scientists writing in Science.