FACT CHECK
Contrary to newspaper headlines in the Mirror, the Sun and the Independent, we cannot say with any confidence that 19 million people have already contracted the new coronavirus.
This was the finding of new research from the University of Manchester - but this research has been challenged by other scientists and is highly uncertain.
The researchers behind this paper did not directly test anybody, either for the new coronavirus, or for any antibodies that would show they had been infected in the past.
Instead, they used a statistical model to estimate the true number of cases that would have existed in the real world, based on the changing number of cases that were reported.
This method has been described “bizarre” by Carl Bergstrom, a professor of biology at the University of Washington.
The study has also been criticised by a number of other academics.
So how many people have been infected? Well, we can’t know for sure yet - and you should be wary of anyone claiming with certainty that they know the figure.
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