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We have now seen what an out-of-control virus can do to our overpopulated, highly interconnected planet. Some 166 million people have been infected in just 18 months.
Officially the death toll from Covid-19 is 3.4 million, though the World Health Organization (WHO) now says the true figure is probably 8 million or even higher.
The US has just announced it is revisiting the origins of the virus, including the possibility that it escaped from a laboratory
This post was originally posted on BBC News. Read the rest of the story at https://www.bbc.co.uk/news/world-57206510.