Covid-19

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Scientists conclude people cannot get coronavirus twice
A number of reported cases of coronavirus patients relapsing after overcoming the disease were actually due to testing failures, South Korean scientists say. Researchers at the South Korean centre for disease control and prevention (CDC) now say it is impossible for the COVID-19 virus to reactivate in human bodies.A number of reported cases of coronavirus patients relapsing after overcoming the disease were actuaTags: infection data, immunity
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California lessons from the 1918 pandemic: One city dithered; another acted and saved lives
Those who don't learn from history are doomed to repeat it. In the 1918 pandemic, Los Angeles adapted strict quarantine measures while San Francisco didn't. LA's excess death rate was 494 per 100,000 residents, lower than any other city. San Francisco suffered 673 excess deaths per 100,000.Those who don't learn from history are doomed to repeat it. In the 1918 pandemic, Los Angeles adapteTags: guidance, reopening, history, quarantine
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