People who recover from COVID-19 may have protective antibodies for up to four months, according to a new study.

Researchers at Harvard Medical School and the Massachusetts General Hospital aimed to determine how long immunity lasts in coronavirus survivors, and whether those infected with COVID-19 will develop lasting protection from the virus.

The study, published in Science Immunology, also focused on the body’s immune response to COVID-19 and the team’s findings suggested antibodies can be an accurate tool for tracking the spread of the infection in the community.

The study found that the immune system produces antibodies in response to SARS-Cov-2 – the virus that causes COVID-19.

However, Dr Richelle Charles, senior author of the paper, said there is a “big knowledge gap” in terms of how long these antibody responses last.

Blood samples were obtained from 343 patients with COVID-19, most of whom had severe cases, up to four months after the patient’s symptoms emerged.

The results were compared with blood samples of more than 1,500 people before the pandemic.

Source: Sky News


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