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Mild coronavirus induces lasting antibody protection, study finds

Months after recovering from mild cases of COVID-19, people still have immune cells which produce antibodies against the novel coronavirus, according to a study. The researchers from Washington University School of Medicine in St. Louis, US, noted that such cells could persist for a lifetime, churning out antibodies all the while. The study, published on Monday in the journal Nature, suggests that mild cases of COVID-19 leave those infected with lasting antibody protection and that repeated bouts of illness are likely to be uncommon. Last fall, there were reports that antibodies wane quickly after infection with the virus that causes COVID-19, and mainstream media interpreted that to mean that immunity was not long-lived, said senior author of the study Ali Ellebedy, an associate professor at Washington University School of Medicine.

Association of circulating sex hormones with COVID-19 severity

About JAMA Network Open: JAMA Network Open is the new online-only open access general medical journal from the JAMA Network. On weekdays, the journal publishes peer-reviewed clinical research and commentary in more than 40 medical and health subject areas. Every article is free online from the day of publication. Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system. Share

Immune system may never forget mild COVID-19

May 25, 2021 Months after recovery from mild COVID-19, when antibody levels in the blood have declined, immune cells in bone marrow remain ready to pump out new antibodies against the coronavirus, researchers reported on Monday in Upon infection, short-lived immune cells are generated quickly to secrete an early wave of protective antibodies. As the immune cells die out, antibody levels decline. But a pool of these immune cells, called long-lived plasma cells, is held in reserve after infection. Most of them migrate to the bone marrow, explained coauthor Ali Ellebedy of Washington University School of Medicine in St. Louis. His team obtained bone marrow samples from 19 patients seven months after the onset of mild COVID-19.

Coronavirus Latest News LIVE Updates: Maharashtra records 24,136 new cases, 601 deaths; tally now 56 2 lakh

Coronavirus Latest News Updates: S Jaishankar meets UN Secretary-General; discusses vaccine solutions to curb virus Firstpost 1 hour ago FP Staff © Provided by Firstpost Coronavirus Latest News Updates: S Jaishankar meets UN Secretary-General; discusses vaccine solutions to curb virus 23:23 (IST) Buddhadeb Bhattacharjee hospitalised with COVID-19 West Bengal s former chief minister Buddhadeb Bhattacharjee, who had tested positive for COVID-19 last week, was admitted at a private hospital in south Kolkata on Tuesday after his health condition deteriorated, officials said. Later in the afternoon, his wife Mira Bhattacharjee, who was discharged from the facility on Monday after she had recovered from coronavirus, was rushed to the medical establishment following a panic attack, they said.

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