Covid-19 (Sars-Cov-2) Antibody Total (IgG+IgM) Test

Covid-19 (Sars-Cov-2) Antibody Total (IgG+IgM) Test

Serology

Test Schedule:

Daily

Report Collection:

Same day

Test Overview

Test Components

Covid Antibody IgG and IgM

Total IgG & IgM Antibody Test

SARS-COV -2 is an enveloped, single stranded RNA virus of the family Coronaviridae, which is responsible for coronavirus disease 19 (COVID-19). There are two types of antibodies IgM, IgG. Their role can be protective or give evidence to the exposure of SARS CoV(covid-19).
IgG antibody is a quantitative test used to detect the presence of antibodies produced as an immune response to an infection, after exposure to COVID-19 antigen or after vaccination for Covid 19.
The IgM test is used to determine whether the individual is exposed to or is infected by the covid virus and if they have mounted a specific anti-SARS-COV-2 IgM immune response.

When is the IgG and IgM antibodies test prescribed?

A doctor may advise this

  • To anyone who wants to know the COVID -19 status. 
  • To use as an aid in identifying individuals with an adaptive immune response to SARS-COV-2,indicating recent, past or prior infection.
  • To detect the severity of the disease as a person with the more severe disease appear to develop a more robust antibody response with IgG and IgM. 
  • To screen the reason that IgG and IgM antibodies detected to COVID-19 are as a result of infection or vaccination.
  • In persons who have been exposed to the virus that causes COVID-19 based on the current or previous signs and symptoms (e.g., difficulty in breathing, fever, cough, headache).
  • In persons living in or have recently traveled to a place where transmission of COVID-19 is known to occur.
  • In persons who have been in close contact with an individual suspected of or confirmed to have COVID-19.

What are the components of IgG and IgM antibodies test?

  • The two main components checked are IgG and IgM antibodies. IgG shows later after the exposure. Usually, IgG antibodies become positive after 8-13 days of exposure and peak at around 21 days. After 7-14 days of exposure to the virus, the viral load decreases, and antibodies start increasing, which can be detected easily in the test; after 14 days though, one may recover from the viral infection, but the antibody test will remain positive because of the immune response of the body. 
  • This test detects IgM antibodies. Whenever a virus attacks the body, IgM is usually the first antibody produced by the immune system. The current antibody tests for SARS-CoV-2 assess IgM and IgG to one of two viral proteins: S or N. The IgM antibody can persist for weeks to months following infection.

Procedure and prerequisites

A blood sample is collected. No specific preparations required. Anybody who wants the COVID status can get the test with or without a doctor’s prescription.

Reference

  • A positive test indicates exposure to SARS-CoV-2.
  • A negative test indicates the absence of SARS-CoV-2.

An antibody test is not a diagnostic test for COVID 19 infection. An antibody test can yield false-negative results if the test is conducted too early. Although, some people may not develop detectable antibodies even after coronavirus infection.

Normal range SARS -COV-2IgM <1.0 (index) Negative
>1.0 (index) Positive

A positive IgM test indicates the presence of SARS-COV-2 IgM antibodies in the blood. This means that the patient had exposure and infection by the virus leading to the body developing an immune response.
A negative result indicates an absence of SARS-COV-2 IgM antibodies in the body.
This test is only for sero-surveillance and should not be used to diagnose SARS-COV-2 infection

Some More Tests

Some More Tests