News > Initial evidence suggests Omicron reduces vaccine efficacy, spreads faster than Delta, says WHO

Initial evidence suggests Omicron reduces vaccine efficacy, spreads faster than Delta, says WHO

Scroll | 13/12/2021 08:49 AM | Click to read full article

The Omicron variant of Covid-19 appears to spread faster than the Delta strain and preliminary findings suggest that it reduces the efficacy of vaccines, the World Health Organization said on Sunday.

The Delta variant was first identified in India earlier this year and accounts for over 99% of Covid-19 cases globally.