How Long Does It Take To Develop Immunity After A COVID-19 Infection?
COVID-19Common questionHow long does it take to develop immunity after a COVID-19 infection?Although the immune correlates of protection are not fully understood, evidence indicates that antibody development following infection likely confers some degree of immunity from subsequent infection for at least 6 months.
Can I get reinfected with COVID-19?
Cases of reinfection with COVID-19 have been reported, but remain rare​.​In general, reinfection means a person was infected (got sick) once, recovered, and then later became infected again. Based on what we know from similar viruses, some reinfections are expected.
Reinfection with COVID-19
How does the body develop immunity to COVID-19?
Once you've been exposed to a virus, your body makes memory cells. If you're exposed to that same virus again, these cells recognize it. They tell your immune system to make antibodies against it.
Coronavirus: What Is Herd Immunity And Are You Protected If You Have Antibodies?
How long does it take for the body to produce antibodies against COVID-19?
Antibodies can take days or weeks to develop in the body following exposure to a SARS-CoV-2 (COVID-19) infection and it is unknown how long they stay in the blood.
Antibody (Serology) Testing for COVID-19: Information for Patients and Consumers | FDA
How strong is immunity after a COVID-19 infection?
How Strong Is Immunity After a COVID-19 Infection? About 90% of people develop some number of protective antibodies after a COVID-19 infection, according to the CDC. But how high those levels climb appears to be all over the map.
Infected, Vaccinated, or Both: How Protected Am I From COVID?