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Study Finds Coronavirus Immunity Could Be Lost In Months

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From The Daily Caller

NICHOLAS ELIAS CONTRIBUTORJuly 13, 2020 12:19 PM ET

A study released Saturday by King’s College London shows that people may lose their immunity to COVID-19 within months and could be susceptible to reinfection on a yearly basis.

Scientists at King’s College London analyzed the amount of antibodies in 90 patients and healthcare workers at Guy and St. Thomas’ NHS trust, per the study. The analysis found that antibody production peaked three weeks after symptoms began and then declined rapidly. (RELATED: Phoenix-Area Hospitals Run Out Of Morgue Beds As Coronavirus Deaths Surge)

The study found that 60% of patients developed a “potent” response with antibodies at the peak of their infection with the virus, but only 17% retained the potency three months later. Antibody levels dropped so sharply in some patients that they became undetectable.

“People are producing a reasonable antibody response to the virus, but it’s waning over a short period of time and depending on how high your peak is, that determines how long the antibodies are staying around,” Dr. Katie Doores, lead author on the study, told The Guardian

Doores also told The Guardian that a vaccine for the virus might also potentially fall short after a few months.  “People may need boosting and one shot might not be sufficient,” Doores explained.

A vaccine created by the University of Oxford shielded test animals from serious infection, but they were still infected enough to be able to pass the virus to other hosts, per The Guardian.

The study by King’s College London also found that those with severe infections produced the most antibodies. The Centers for Disease Control and Prevention (CDC) names seven different types of coronavirus currently spreading across the globe, most of which create the common cold. Two other strains create MERS and SARS, while the newest strain creates the novel coronavirus, or COVID-19.

“One thing we know about these coronaviruses is that people can get reinfected fairly often,” Prof. Stuart Neil, a co-author on the study, told The Guardian. “What that must mean is that the protective immunity people generate doesn’t last very long. It looks like Sars-Cov-2, the virus that causes Covid-19, might be falling into that pattern as well.”

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