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The second wave of COVID-19 has arrived. Cases are spiking in most European countries, Canada is seeing the number of daily cases exceed the first peak in April/May and the United States is facing a potential third wave.
Some countries like Brazil, India and Argentina are still in the first wave. Others like New Zealand, Vietnam and Singapore have contained the virus. But the second wave has arrived in the northern hemisphere, as we confront the upcoming winter.https://theconversation.com/how-to-prevent-covid-19-superspreader-events-indoors-this-winter-147439

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