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How Long Do Covid Antibodies Last Cdc

Can you get reinfected with COVID-19?

Based on what we know from similar viruses, some reinfections are expected. We are still learning more about COVID-19.

Reinfection with COVID-19

How long can COVID-19 antibodies be detected in blood samples?

Antibodies may be detected in your blood for several months or more after you recover from COVID-19.

COVID-19 antibody testing

How long do antibodies last after COVID-19 infection?

Dr. Finstad: It appears that antibodies to SARS-CoV-2 last for at least several months. One SeroNet study found that people who had mild to moderate COVID-19 had neutralizing antibodies for at least 5 months. Another found similar results—people who recovered from COVID-19 had neutralizing antibodies for 6 months.

NCI's Research on COVID-19, Vaccines, and Antibodies

What is the COVID-19 antibody test?

An antibody test looks for antibodies that are made by the immune system in response to a threat, such as a specific virus. Antibodies can help fight infections. Antibodies can take several days or weeks to develop after you have an infection and may stay in your blood for several weeks after recovery. Because of this, antibody tests should not be used to diagnose an active coronavirus infection. At this time, researchers do not know if the presence of antibodies means that you are immune to the

COVID-19 Frequently Asked Questions | FDA