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Two New Omicron Sublineages Discovered by South African Scientists

  • The new virus sublineages have been named BA.4 and BA.5
  • Discovery hasn’t been accompanied by surge in infections
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South African scientists have discovered two new sublineages of the omicron coronavirus variant, said Tulio de Oliveira, who runs gene-sequencing institutions in the country.

The lineages have been named BA.4 and BA.5, he said by text message and in a series of tweets. Still, de Oliveira said, the lineages have not caused a spike in infections in South Africa and have been found in samples from a number of countries.