Yanzu nau'in XBB 1.5 ya zama ruwan dare a duniya. Wasu abokan ciniki suna shakkar ko gwajin mu na gaggawa na antigen na covid-19 zai iya gano wannan nau'in ko a'a.

Spike glycoprotein yana wanzuwa a saman sabon coronavirus kuma yana iya canzawa cikin sauƙi kamar Alpha variant (B.1.1.7), Beta variant (B.1.351), Gamma variant (P.1), Delta variant (B.1.617), Omicron variant (B.1.1.529), Omicron variant (XBB1.5) da sauransu.
Nucleocapsid na kwayar cuta ya ƙunshi furotin na nucleocapsid (N protein a takaice) da kuma RNA. Sunadaran N suna da daidaito sosai, mafi girman kaso a cikin sunadaran tsarin ƙwayoyin cuta kuma suna da matuƙar sauƙin ganewa.
Dangane da siffofin furotin na N, monoclonal antibody na furotin na N akan sabon abu
An zaɓi coronavirus a cikin haɓakawa da ƙira samfurinmu mai suna "SARS-CoV-2 Antigen Rapid Test (Colloidal Gold)" wanda aka yi niyya don gano ingancin SARS-CoV-2 Antigen a cikin samfuran hanci a cikin vitro ta hanyar gano furotin N.
Wato, nau'in glycoprotein mai canzawa wanda ya haɗa da XBB1.5 ba ya shafar sakamakon gwajin.
Saboda haka, muAntigen na Sars-Cov-2iya gano XBB 1.5