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Covid-19: Researchers launch app to track spread of symptoms in the UK

BMJ 2020; 368 doi: https://doi.org/10.1136/bmj.m1263 (Published 27 March 2020) Cite this as: BMJ 2020;368:m1263

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  1. Susan Mayor
  1. London, UK

Nearly 700 000 people signed up in the first 24 hours of the launch of an app to help track the spread of coronavirus across the UK in real time and collect information on the range of self-reported symptoms and the characteristics of those most at risk.

The Covid Symptom Tracker app (covid.joinzoe.com) enables users to make a daily report of any symptoms. It is available free of charge to members of the public in the UK. The app has also been given to 5000 twins and their families recruited from the ongoing TwinsUK cohort study.1

“The aim of the app is to help slow the outbreak” by understanding what measures work, said the researchers from King’s College London and Guy’s and St Thomas’ Hospitals in partnership with ZOE, a spin-off health data science company from King’s. “It will …

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