A man receives a dose of the AstraZeneca Covid-19 vaccine from a health worker in Labrea, Brazil’s Amazonas state. Photo: AP A man receives a dose of the AstraZeneca Covid-19 vaccine from a health worker in Labrea, Brazil’s Amazonas state. Photo: AP
A man receives a dose of the AstraZeneca Covid-19 vaccine from a health worker in Labrea, Brazil’s Amazonas state. Photo: AP

Coronavirus: quest for mutant-quelling vaccines begins as multiple new variants run rampant

  • The coronavirus has undergone several major mutations, pushing scientists to target multiple versions of the pathogen in a single shot
  • Pfizer and Moderna have said they’re starting work on developing booster shots or other efforts to bolster their vaccines

Topic |   Coronavirus pandemic
A man receives a dose of the AstraZeneca Covid-19 vaccine from a health worker in Labrea, Brazil’s Amazonas state. Photo: AP A man receives a dose of the AstraZeneca Covid-19 vaccine from a health worker in Labrea, Brazil’s Amazonas state. Photo: AP
A man receives a dose of the AstraZeneca Covid-19 vaccine from a health worker in Labrea, Brazil’s Amazonas state. Photo: AP
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