New Covid mutation: ‘we are alert, not alarmed’

First case of highly transmissible XBB. 1.5 found in South Africa

08 January 2023 - 00:01

By HENDRIK HANCKE

Virologist Prof Tulio de Oliveira has played down concerns after South Africa identified its first case of a Covid infection caused by the new highly transmissible XBB. 1.5 mutation.

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