WASHINGTON, Jan 2 — The United States has set several new records in Covid-19 indicators as the pandemic enters its third year, and health experts have warned of a "tidal wave" of the pandemic in 2022, said Xinhua.

ANKARA, Dec 8 — The new Covid-19 variant, Omicron, has spread to 50 countries and 19 US states, Centres for Disease Control and Prevention (CDC) Director Rochelle Walensky said Tuesday, reported Anadolu Agency (AA).