Estimates of asymptomatic coronavirus cases are around 40-45% according to Dr. Anthony Fauci, with the World Health Organization previously projecting a similar estimate, though a new study suggests silent spreaders could comprise more than three-quarters of cases.
Researchers from University College London published their peer-reviewed findings on Thursday in Clinical Epidemiology.
“Little is known about what proportion of infectious people are asymptomatic and potential ‘silent’ transmitters,” study authors wrote. They used data from the Office for National Statistics Coronavirus (COVID-19) Infection Survey pilot study, which surveys households in England.
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Of 36,061 people who were tested between April 26 and June 27, 625 (1.7%) reported symptoms on the day of the test. Of the total, just 115 people