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Omicron May Cut Future Severity of Coronavirus, Study Shows

  • Omicron can infect those who’ve had delta, but not vice-versa
  • Study led by Alex Sigal of Africa Health Research Institute
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Fauci: Too Soon to Say If Omicron Means End of Pandemic
Updated on

A strong wave of coronavirus infections driven by the omicron variant could hasten the end of pandemic disruptions as it appears to cause less severe illness and provides protection against the delta variant, South Africa-based researchers said. 

A laboratory study that used samples from 23 people infected with the omicron variant in November and December found that while those who previously caught the delta variant could contract omicron, those who get the omicron strain couldn’t be infected with delta, particularly if they have been vaccinated, the researchers said. Results among the unvaccinated were unclear, as was whether they had been previously infected.