US makes negative test binding on flyers; Omicron now in 38 nations

The Omicron variant continues to spread in the US, with three more cases reported in New York City and one each in Massachusetts, Wisconsin and Connecticut on Saturday

The Omicron variant has been detected in 38 countries but no deaths have yet been reported, the WHO said, as authorities worldwide rushed to stem the heavily mutated Covid-19 strain’s spread. 

The United States made it mandatory for all incoming passengers to carry a negative Covid-19 test report or a proof of recovery from the contagion as 15 US states reported the presence of the new variant. Though the Delta variant remains the majority of Covid-19 cases nationwide, US Centers for Disease Control and Prevention Director Rochelle Walensky told ABC News on Sunday. The new protocol comes into effect from