Sample type: Serum and plasma
Storage condition:1. Unopened kits can be stored for 12 months at 2-8°C. Do not freeze.
2. Once opened,the dissolved positive control, negative control and reference control should be stored at -20℃ and be used within 1 month. Freezing/thawing cycles should not exceed 3 times. Other components should be stored between 2℃ to 8℃
After SARS-CoV-2 viral infection, the virus specific IgM antibody occurs a few days prior to the IgG antibody. The IgM antibody level in the serum decreases in the disease recoveryphase, but the IgG form remains at the elevated level. The detection of IgG and IgM antibodies against the virus provide useful information in the virus infection screening and the disease diagnosis. The serologic diagnosis has been included into the laboratory examination guideline for SARS-CoV-2 detection