Ọrịa iku ume siri ike coronavirus 2 (SARS-CoV-2), ihe na-akpata ọrịa coronavirus ọhụrụ 2019 (COVID-19), bụ ezi uche, nje virus RNA nwere otu eriri nwere genome nha gburugburu 30kb. .Ọtụtụ ụdị dị iche iche nke SARS-CoV-2 nwere akara mbinye aka pụrụ iche apụtala n'oge ọrịa a.Dabere na odida obodo ha na-agbanwe protein, ụfọdụ ụdị egosila nfefe dị elu, ọrịa na-efe efe.

Usoro ọmụmụ BA.2.86 nke SARS-CoV-2, bụ nke eburu ụzọ mata n'August 2023, dị iche na usoro ọmụmụ nke Omicron XBB na-ekesa ugbu a, gụnyere EG.5.1 na HK.3.Usoro ọmụmụ BA.2.86 nwere ihe karịrị mmụgharị 30 na protein spike, na-egosi na usoro ọmụmụ a nwere ike dị ukwuu nke ịgbanarị mgbochi SARS-CoV-2 dịbu adị.

JN.1 (BA.2.86.1.1) bụ ụdị dị iche iche nke SARS-CoV-2 pụtara na nso nso a nke sitere na usoro ọmụmụ BA.2.86.JN.1 nwere ngbanwe nke L455S na protein spike na mmụgharị atọ ndị ọzọ na protein ndị na-abụghị spike.Nnyocha na-enyocha HK.3 na ụdị "Flip" ndị ọzọ egosila na ịnweta mgbanwe L455F na protein spike na-ejikọta ya na mmụba nje na-ebuwanye ibu na ikike mgbapụ.A na-akpọ mmụgharị L455F na F456L "tụgharịa"mmụba n'ihi na ha na-agbanwe ọnọdụ nke amino acid abụọ, nke akpọrọ F na L, na protein spike.

Anyị baysen ahụike nwere ike ịnye nnwale onwe onye maka Covid-19 maka iji ụlọ, nabata ịkpọtụrụ anyị maka nkọwa ndị ọzọ.