Origins, Symptoms, Vaccine

Coronavirus: many infections spread by people yet to show symptoms – scientists

Findings mean that isolating people once they start to feel ill is less effective than hoped

Many coronavirus infections may be spread by people who have recently caught the virus and have not yet begun to show symptoms, scientists have found.

An analysis of infections in Singapore and Tianjin in China revealed that two-thirds and three-quarters of people respectively appear to have caught it from others who were incubating the virus but still symptom-free.

“What is important to know is that, in their analysis, isolation can play an important and possibly crucial role but needs to be supplemented by other measures,” he added.

Infected people without symptoms might be driving the spread of coronavirus more than we realized

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