There are probabilities, and there are possibilities, said Banerjee. We rarely get a smoking gun, said Stephen Morse, a disease researcher at Columbia University. Nearly 600,000 people in the United States have died of COVID-19, the highest toll of any country. Covid-19 has killed more than 2.8 million people worldwide in the 15 months since it emerged, forcing governments around the world to introduce punishing restrictions that have pummelled the global economy. While the closest known viruses to Covid-19 have been found in bats, the 'evolutionary distance' between them is thought to be 'several decades'.
Stephen Morse, a disease hasn't studied in any countries, informed the press that 800,000 humans killed of the virus.
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Stephen Morse , a disease has n't studied in any countries , informed the press that 800,000 humans killed of the virus .
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