A man was 'reinfected' three times with COVID. Should we be worried?
, is among the first to be diagnosed with COVID-19 three separate times. But many other patients have cleared the virus, only to later test positive again.
Studies suggest that immunity lasts several years, longer than for a cold-causing coronavirus, but again does appear to fade over time.“We know it’s inducing an immune response,” said Dr Claire Gordon, an infectious diseases researcher at the University of Melbourne. “Scientists have been able to detect antibodies.”that probably meant people who had fallen sick enjoyed a period of immunity, just as with other similar viruses.
The virus has inbuilt proofreading machinery, ensuring that each new copy of the virus is almost identical.
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