Apr 22, 2020

Coronavirus: Facebook launches UK Covid-19 symptom survey

Facebook is to begin asking selected UK users whether they have had symptoms of Covid-19, later on Wednesday. Facebook said it would not have access to users' health data but would simply pass it on to CMU. One expert said data from the surveys would be useful to scientists but probably not, on its own, reveal much about the disease. Facebook launched the surveys in the US, on 6 April, attracting about a million responses per week. Facebook has already published a symptom map showing its estimated proportion of people with Covid-19 in areas across the US. Mauricio Santillana, at Harvard University, said the project was "Very useful". Trusting a single data source would not be wise and the Facebook survey data should be treated as "Complementary" to other information.

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