The Omicron variant of COVID-19 is intrinsically as severe as previous variants, unlike assumptions made in previous studies that it was more transmissible but less severe, a large study in the United States has found.

Omicron as severe as previous Covid variants, large study finds

New Omicron variants can cause a fresh wave of the Covid pandemic, a study has said. The new variants have been able to bypass natural immunity from prior COVID-19 infections, the study conducted in South Africa added.

Omicron Covid subvariants can overcome natural immunity, trigger new wave: Study

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