The Journal of the American Medical Association yakaburitsa chidzidzo chechitatu, zvakare ichitungamirwa nevatsvagiri veCDC.
Yakatarisa vanhu vakaedza CCIDID-19 kubva Zvita 10 kusvika Ndira 1 panzvimbo dzinopfuura mazana mana nemazana matanhatu enzvimbo dzekuyedza muUS.
Mapfuti matatu emishonga yekudzivirira yePfizer neModerna angangoita makumi matanhatu nenomwe muzana akashanda kurwisa chirwere cheOmicron chine chekuita nezviratidzo zvichienzaniswa nevanhu vasina kubayiwa.
Madhizi maviri, zvisinei, haana kupa dziviriro yakakosha kubva kuOmicron paakayerwa mwedzi yakati wandei mushure mekupedzwa kweyekutanga nhevedzano, vaongorori vakawana.
"Kana uchikodzera kuwana booster uye usati waiwana, hausati wasvika uye unofanirwa kuwana booster yako," Director weCDC Dr Rochelle Walensky vakadaro pamusangano weWhite House neChishanu.
