Ua paʻi ka Journal of the American Medical Association i ke kolu o ka noiʻi, alakaʻi pū ʻia e nā mea noiʻi CDC.
Nānā ia i nā poʻe i hoʻāʻo maikaʻi no COVID-19 mai Dekemaba 10 a Ianuali 1 ma mua o 4,600 mau kahua hoʻāʻo ma waena o US.
ʻEkolu kiʻi o ka Pfizer a me Moderna kano ma kahi o 67 pākēneka e kūʻē i ka maʻi hōʻailona pili i ka Omicron i hoʻohālikelike ʻia me nā poʻe i hoʻopaʻa ʻole ʻia.
ʻAʻole i hāʻawi ʻia ʻelua mau ʻāpana i kahi pale koʻikoʻi e kūʻē iā Omicron ke ana ʻia i kekahi mau mahina ma hope o ka pau ʻana o ka moʻo kumu, ʻike nā mea noiʻi.
"Inā ʻae ʻoe i ka booster a ʻaʻole ʻoe i loaʻa, ʻaʻole ʻoe i kēia lā a pono ʻoe e kiʻi i kāu booster," wahi a ka Luna Hoʻokele CDC ʻo Dr Rochelle Walensky i ka wā o kahi pōkole White House ma ka Pōʻalima.