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New study: COVID-19 immunity remains strong after 8 months

A new study suggests that COVID-19 immunity remains strong after 8 months.

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In this June 30, 2020 file photo, a healthcare worker takes a blood sample during a house-to-house rapid antibody test drive in Villa el Salvador, on the outskirts of Lima, Peru. Antibody tests – which detect proteins created by the immune system in response to a virus – have numerous drawbacks. If taken too early, most people with the virus test negative.

In this June 30, 2020 file photo, a healthcare worker takes a blood sample during a house-to-house rapid antibody test drive in Villa el Salvador, on the outskirts of Lima, Peru. Antibody tests – which detect proteins created by the immune system in response to a virus – have numerous drawbacks. If taken too early, most people with the virus test negative.

Rodrigo Abd, Associated Press

A new study suggests that post-infection COVID-19 immunity remains strong after 8 months.

What’s going on?

In a new study, researchers said there’s a robust immune response to COVID-19 for eight months after infection.

  • The study — published in the journal Science — said about 90% of the patients studied showed stable immunity.

The study reviewed blood samples from 200 patients. The samples showed that the immunity system — not just antibodies — recognized COVID-19 and responded to the virus.

  • The immune system appears to recognize the COVID-19 virus and generate a counterattack against it.

Why it matters:

The Washington Post laid it out quite clearly: “There have been isolated reports of people having a second case of COVID-19, the disease caused by the virus, but that appears to be rare, and the new study bolsters the case that immunity usually persists.”

Immunity from COVID-19

A new study from the Centers for Disease Control and Prevention found that people who recovered from COVID-19 may have less than 90 days of immunity, according to the Deseret News.

The new study looked at 156 health care workers in the U.S. who tested positive for COVID-19 for the study, giving them an antibody test one month after developing systems.

  • 94% of participants showed some sort of decline in antibodies by the time of the second test.
  • 28% experienced a significant decline.