LONDON, Nov 20 (Reuters) – Individuals who’ve had COVID-19 are extremely unlikely to contract it once more for at the very least six months after their first an infection, in response to a British examine of well being care employees on the frontline of struggle in opposition to the coronavirus pandemic.
The findings ought to provide some reassurance for the greater than 51 million folks worldwide who’ve been contaminated with the pandemic illness, researchers on the College of Oxford mentioned.
“That is actually excellent news, as a result of we might be assured that, at the very least within the brief time period, most individuals who get COVID-19 received’t get it once more,” mentioned David Eyre, a professor at Oxford’s Nuffield Division of Inhabitants Well being, who co-led the examine.
Remoted circumstances of re-infection with COVID-19, the illness brought on by the SARS-CoV-2 virus, had raised issues that immunity may be short-lived and that recovered sufferers could swiftly fall sick once more.
However the outcomes of this examine, carried out in a cohort of UK well being care employees – who’re amongst these at highest threat of contracting COVID-19 – recommend circumstances of reinfection are more likely to stay extraordinarily uncommon.
“Being contaminated with COVID-19 does provide safety agains tre-infection for most individuals for at the very least six months,” Eyre mentioned. “We discovered no new symptomatic infections in any of the contributors who had examined optimistic for antibodies.”
The examine, a part of a significant employees testing program, lined a 30-week interval between April and November 2020. Its outcomes haven’t peer-reviewed by different scientists however had been printed earlier than assessment on the MedRxiv web site.
In the course of the examine, 89 of 11,052 employees with out antibodies developed a brand new an infection with signs, whereas not one of the 1,246employees with antibodies developed a symptomatic an infection.
Workers with antibodies had been additionally much less more likely to check optimistic for COVID-19 with out signs, the researchers mentioned, with 76with out antibodies testing optimistic, in comparison with solely three with antibodies. These three had been all properly and didn’t developCOVID-19 signs, they added.
“We are going to proceed to observe this cohort of employees fastidiously to see how lengthy safety lasts and whether or not earlier an infection impacts the severity of an infection if folks do get contaminated once more,” Eyre mentioned.
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