A medical worker tests samples in order to detect the new coronavirus variant Omicron in a laboratory in Shamir Medical Center near Tel Aviv, Israel, on Dec. 1, 2021. (Gideon Markowicz/JINI via Xinhua)
A medical worker tests samples in order to detect the new coronavirus variant Omicron in a laboratory in Shamir Medical Center near Tel Aviv, Israel, on Dec. 1, 2021. (Gideon Markowicz/JINI via Xinhua)
A medical worker tests samples in order to detect the new coronavirus variant Omicron in a laboratory in Shamir Medical Center near Tel Aviv, Israel, on Dec. 1, 2021. (Gideon Markowicz/JINI via Xinhua)