Even if you’ve had Covid-19 you may not be out of the woods

World

Even if you’ve had Covid-19 you may not be out of the woods

Two cases of reinfection in Europe have created doubt about the effectiveness of potential vaccines

Anne Gulland

Two European patients are confirmed to have been reinfected with the coronavirus, raising questions about how long immunity to the virus lasts.

The cases, in Belgium and the Netherlands, come a day after researchers in Hong Kong revealed that a 33-year-old man was reinfected with a different strain of the virus four and a half months after being declared recovered, the first such reinfection to be determined through genetic sequencing.

The new cases have fuelled fears about the effectiveness of potential vaccines against the virus, as it would appear immunity only lasts a short period of time...

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