Two more reinfections confirmed.

Coronavirus: What's happening around the world on Tuesday CBC News
https://www.cbc.ca/news/world/coronavirus-covid19-world-aug-25-1.5698645

>Two European patients are confirmed to have been reinfected with the coronavirus, according to regional public broadcasters, raising concerns about people's immunity to the virus as the world struggles to tame the pandemic.
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>The news follows a report this week by researchers in Hong Kong about a man there who had been reinfected four and a half months after being declared recovered.
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>That has fuelled fears about the effectiveness of potential vaccines against the virus, though experts say there would need to be many more cases of reinfection for these to be justified.
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>Broadcasters said on Tuesday a patient in the Netherlands and another in Belgium had been reinfected with the virus that has led to hundreds of thousands of deaths worldwide and slammed the global economy.
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>Dutch broadcaster NOS cited virologist Marion Koopmans as saying the patient in the Netherlands was an older person with a weakened immune system.
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>Koopmans said that cases where people have been sick with the virus for a long time, and then experience a flare-up, are better known.
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>But a true reinfection, as in the Dutch, Belgian and Hong Kong cases, requires genetic testing of the virus in both the first and second infection to see whether the two instances of the virus differ slightly.
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>Koopmans, an adviser to the Dutch government, said reinfections had been expected.
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>"That someone would pop up with a reinfection, it doesn't make me nervous," she said. "We have to see whether it happens often."
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>Dutch Health Ministry officials did not immediately respond to a request for comment.
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