Line survey finds 7% of users in Tokyo have at least one coronavirus symptom

A survey of Line Corp’s (3938.T) chat app users in Tokyo and neighboring prefectures in partnership with Japan’s health ministry found 7.1% of respondents in the capital reporting at least one of the symptoms of the coronavirus.
A total of 443 people in Tokyo are infected with coronavirus according to official figures. Line’s survey found that 7.1% out of 63,843 people responding in Tokyo reported at least one of the symptoms of the virus, including high fever or a bad cough, between March 27-30.
That puts the number of people reporting symptoms from a limited sample at around 4,500, although having such symptoms does not prove coronavirus infection and the respondees were self-selecting.
https://www.reuters.com/article/us-health-coronavirus-line/line-survey-finds-7-of-users-in-tokyo-have-at-least-one-coronavirus-symptom-idUSKBN21I0LJ