A test of 200 people just outside Boston found that 32% had been exposed to the coronavirus, compared to an official rate of 2%

AP Photo/Michael Dwyer

• A series of coronavirus tests carried out in Chelsea, Massachusetts, suggested than many more people have been exposed to the coronavirus than official figures show.
• The project, carried out by Massachusetts General Hospital, took blood from 200 volunteers and tested it for antibodies produced after exposure. 32% had the antibodies.
• The official positive rate for COVID-19 testing in Chelsea is 2%, though officials had already assumed the real figures are much higher.
• The study is only a snapshot, and its findings are not necessarily applicable to the rest of the US, or even Massachusetts.
• Visit Business Insider's homepage for more stories.

A snapshot test of people in a town just outside of Boston found that around one-third of them had been exposed to the coronavirus, even though none showed symptoms.

The results from Chelsea, Massachusetts, have led some experts to conclude that the coronavirus outbreak there, and potentially elsewhere, had touched many more people than first thought.See the rest of the story at Business Insider

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