Only 50 people are known to have contracted COVID-19 more than once -- but new strains have medical
experts on high alert
Its very rare for someone to get infected with the coronavirus causing the disease COVID-19 a second time, but the few confirmed cases of reinfection tell us that immunity to the virus isnt guaranteed and that vaccination could become a regular part of our medical care going forward.
There are about 50 confirmed cases of reinfection globally. Thats far less than 1% of the 110 million coronavirus cases reported around the world. BNO News, a Dutch news site, is tracking reinfections at a global level; its identified 51 confirmed cases of reinfection along with roughly 11,000 suspected or probable reinfections.
Reinfection is thought to occur when protective antibodies wane in people who have previously contracted the virus or in people who contracted the virus without developing antibodies.
For some infectious-disease doctors, this isnt a surprise.
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