Abstract The highly mutated and transmissible Omicron (BA. 1) and its more contagious lineage BA. 2 have provoked serious concerns over their decreased sensitivity to the current COVID-19 vaccines and evasion from most anti-SARS-CoV-2 neutralizing antibodies (NAbs). https://www.wholisticpet.shop/product-category/feline-treats-freeze-dried/