Over 45% COVID Patients Silent Asymptomatic Carriers

by Paromita Datta published on -

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Just a little less than half the number total number of COVID-19 infected people may be asymptomatic, posing a challenge in the control of its spread. A recent study by Scripps Research, published in the Annals of Internal Medicine, shows that up to 45 percent of the infected people never showed any symptoms. The findings highlighted the need for expansive testing and contact tracing as the only means of finding asymptomatic carriers.

Woman on street wearing a protective mask

With 45% COVID asymptomatic carriers, masks are essential protective gear. Photo Credit: Shutterstock

These figures are based on 16 diverse cohort studies from across the world. The researchers looked for data from various sources, from medical databases to news reports. As a result, their dataset included diverse people from prison inmates to homeless shelters, cruise ships, and nursing homes. What they noticed was a large proportion of people who never showed any symptoms. Among the prison inmates from four US states, the number of asymptomatic people was as much as 96 percent.

What made this worrying is that lack of symptoms did not mean an absence of harm. CT scans of the 76 asymptomatic individuals on the Diamond Princess cruise ship showed that 54 percent of these individuals suffered from subclinical lung abnormalities. The authors concluded that given the potential of asymptomatic people acting as carriers of the disease, preventive measures like masks were essential

Meanwhile, the WHO also rectified its earlier stance on the low risk posed by asymptomatic people. The world body had earlier said that the chances of such people passing on the disease were ‘very rare’. However, the agency later said that the potential of such a transmission is largely unknown, indicating that asymptomatic people could also act as carriers.

COVID-19 is an emerging, rapidly evolving situation.
Get the latest public health information from CDC.
Get the latest research from NIH.

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About the Author

Paromita Datta covers the latest health and wellness trends for Organic Facts. An ex-journalist who specialized in health and entertainment news, Paromita was responsible for managing a health supplement for The New Indian Express, a leading national daily in India. She has completed her post-graduation in Business Administration from the University of Rajasthan and her diploma in journalism from YMCA, Delhi. She has completed an e-course, Introduction to Food and Health, from Stanford University, US.

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