Does social distancing really work? I looked at syndromic surveillance data from Taiwan, Hong Kong and Singapore, all of which experienced SARS in 2003. I also looked at the Republic of Korea.
These places strongly encouraged social distancing (in addition to other public health measures) in mid-January. Is this analysis bulletproof? No. But should it encourage us all to social distance? Yes.
I have tried to mark the fourth week of January, where possible. That is when cases started to be detected outside of mainland China and when Wuhan was locked down. Links to source in each figure.
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