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Confirmed COVID reinfection in US raises questions about vaccine immunity – 7NEWS.com.au
A 25-year-old man from Nevada with no known underlying conditions was infected with COVID-19 on two separate occasions, researchers found.

The first confirmed US case of coronavirus reinfection has been reported by researchers.
A 25-year-old man with no known immune disorders or underlying conditions was infected with COVID-19 on two separate occasions, according to a study published in the Lancet Infectious Diseases journal.
While the authors said further research was required, they added the findings indicate previous exposure to the virus may not guarantee total immunity.
It is the fifth confirmation of reinfection worldwide,…
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