COVID-19

Asymptomatic, pre-symptomatic, symptomatic: what is the difference?

Many people carry coronavirus without ever realizing it. Image: REUTERS/Carlos Garcia Rawlins

Charlotte Edmond

Senior Writer, Formative Content

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Percentage of respondents who have gone into quarantine or self isolation in response to the COVID-19 outbreak worldwide, from March 19 to April 4, 2020, by country.
Percentage of respondents who have gone into quarantine or self-isolation in response to the COVID-19 outbreak worldwide, from March 19 to April 4, 2020, by country. Image: Statista
Which Countries Have Ramped up Testing?
Which Countries Have Ramped up Testing? Image: Statista
Number of coronavirus (COVID-19) tests carried out in Europe as of June 18, 2020, by country.
Number of COVID-19 tests carried out in Europe as of 18 June 2020, by country. Image: Statista
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