Omicron less severe than Delta but still poses danger for unvaccinated: WHO

In its weekly epidemiological report on Tuesday, the WHO said cases increased by 55 percent, or 15 million, in the week to January 9 from a week earlier - by far the most cases reported in a single week.

The highly infectious Omicron coronavirus variant causes less severe disease than the Delta strain but it remains a “dangerous virus”, particularly for those who are unvaccinated, the head of the World Health Organization (WHO) said on Wednesday.