A longish but not too technical read: Lies, Damned Lies and Health Statistics – the Deadly Danger of False Positives
Final quote:
I wish to note that in the last 40 years alone the UK has had seven official epidemics/pandemics; AIDS, Swine flu, CJD, SARS, MERS, Bird flu as well as annual, seasonal flu. All were very worrying but schools remained open and the NHS treated everybody and most of the population were unaffected. The country would rarely have been open if it had been shut down every time.
I have explained how a hopelessly-performing diagnostic test has been, and continues to be used, not for diagnosis of disease but, it seems, solely to create fear.