Spike glycoprotein dị n'elu coronavirus ọhụrụ ma na-agbanwe ngwa ngwa dị ka Alfa (B.1.1.7), Beta (B.1.351), Delta (B.1.617.2), Gamma (P.1) na Omicron (B.1.1.529, BA.2, BA.4, BA.5).

Ihe mejupụtara nucleocapsid viral bụ protein nucleocapsid (protein N maka nkenke) na RNA. Protein N ahụ kwụsiri ike, oke kachasị na protein structural viral yana nghọta dị elu na nchọpụta.

Dabere na njirimara nke protein N, ahọpụtara Monoclonal antibody nke N protein megide coronavirus ọhụrụ na mmepe na imepụta ngwa nnwale Antigen na-anwale onwe anyị aha ya bụ "SARS-CoV-2 Antigen Rapid Test (Colloidal Gold)" nke ezubere maka nchọpụta qualitative nke SARS-CoV-2 Antigen na imi swab n'ụdị site na nchọpụta protein na vitro.

Nke ahụ bụ, n'ihi na ugbu a spike glycoprotein mutant strain dị ka Alpha (B.1.1.7), Beta (B.1.351), Delta (B.1.617.2), Gamma (P.1) na Omicron (B.1.1.529, BA.2, BA.4, BA.5). Agaghị emetụta arụmọrụ nke SARS-CoV-2 Antigen Rapid Test (Colloidal Gold) nke ụlọ ọrụ anyị mepụtara.