The IgG antibodies increase in concentration up to around day 21 after the infection or vaccination and will last in the body for around 6 months. IgG antibodies are produced around 14 days after the COVID-19 infection or vaccination. After around day 14, IgM antibodies start to drop. IgM antibodies keep increasing up to around day 14. They become detectable with an antibody serology test that detects IgM antibodies from around day 10 when they are in high enough concentration. IgM antibodies are produced around 7 days after the COVID-19 infection or vaccination. IgC antibodies are produced later but remain in the blood during around 6 months and provide long term immunity. IgM antibodies are produced much quicker than IgG antibodies and disappear around 3 weeks after the COVID-19 infection or vaccination. IgG & IgM antibody tests that detect both IgG and IgM antibodies IgG antibody serology tests that only detect IgG antibodiesĢ. There are two types of antibody tests that enable to measure your coronavirus immunity:ġ. IgG & IgM antibody test – What’s the difference? The testing centres recommended on this page perform serology tests with blood samples, they do no perform quick antibody serology tests. Note that rapid serology tests or rapid antibody tests refer to the quick antibody tests performed with a finger prick test. The world “serology” refers to blood serum testing and therefore the tests performed by the testing centres are performed with a blood sample (the usual blood test in a vein of your arm). You can find this table further down on the page.Īntibodies tests are also referred to as serology tests. If you wish to, you will also be able to book your antibody serology test at a testing centre that meets your needs in terms of area, opening times, price and results delivery from the comparison table by clicking on ‘Click to book your test’.
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