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A Key Role for Antibody Detection in COVID-19 Diagnosis

June 22, 2021

COVID-19 (Corona Virus Disease) is caused by 2019-nCoV (SARS-COV-2) which is mainly transmitted through respiratory droplets.

 

Symptoms of COVID-19 may appear 2-14 days after exposure. For confirmed COVID-19 cases, reported illnesses have ranged from mild symptoms to severe illness and death. Symptoms mainly include: Fever, Cough and Shortness of breath.

 

Serological methods for 2019-nCoV-specific IgM&IgG antibody tests were well approved in clinical setting.

 

IgM antibody can be detected on the seventh day of the infection or on the third day of the onset of the disease with rapid test, which will be helpful for further diagnosis.

 

The primary reason for an antibody test for SARS-COV-2 like ALLTEST 2019-nCOV Rapid Test getting popularity is the fact that in certain case, the virus can be in lower respiratory tract, while antigen tests and nucleic acid tests may have samples collected from throat (upper respiratory tract), where sufficient virus/viral antigens may not be present to get a positive result despite the person having infection. This phenomenon has resulted in a key role for antibody detection in COVID-19 diagnosis.