What is Covid Antibody IgG (Qualitative)?

Covid-19 Antibody IgG (Qualitative) helps in detecting the presence of specific IgG antibodies against COVID- 19. Your body makes antibodies when you get an infection and these antibodies help fight against it. If you have COVID-19 antibodies in your blood, it's likely you've had the infection or have been exposed to the infection before.

Covid-19 Antibody IgG (Qualitative):

1. Measures the presence of IgG antibodies against COVID-19
2. Measures Neutralizing Antibody
3. Detects prior exposure to the virus
4. Detects vaccine response of the body
5. Unit of measurement: Index value
6. Reportable values:
   < 1.0 : Negative - Indicates absence of SARS-CoV-2 IgG Antibodies
   ≥1.0 : Positive - Indicates presence of SARS-CoV-2 IgG Antibodies

How does Covid-19 Antibody IgG (Qualitative) compare to Covid-19 Antibody IgG (Quantitative)?

Similarities:

1. Measures Neutralizing Antibody
2. Detects prior exposure to the virus
3. Detects vaccine response of the body

Differences:

1. The Qualitative test measures the presence of antibodies against COVID-19 while the Quantitative test measures the presence and quantifies the specific amount of antibodies of COVID-19
2. Unit of measurement: Index value for Qualitative test vs AU/ml for Quantitative test
3. Reportable values:
   
   Qualitative:
   < 1.0 : Negative
   ≥1.0 : Positive
   
   Quantitative:
   < 50.0 AU/ml : Negative
   >=50.0 - 80,000 AU/ml : Positive

Note: Covid Antibody IgG (Qualitative) test only helps in detecting the presence of antibodies and is not meant to be used for diagnosis of active Covid-19 infection.

Interpreting Covid Antibody IgG (Qualitative) results

Interpretations
< 1.0 : Negative - Indicates absence of SARS-CoV-2 IgG Antibodies
≥1.0 : Positive - Indicates presence of SARS-CoV-2 IgG Antibodies