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WHO Says Asymptomatic Spread of Coronavirus Is "Very Rare"

While Asymptomatic Spread of Coronavirus Can Happen, the WHO Now Says It's "Very Rare"

Young people meet in quarantine outside on the city street wearing face protective mask to prevent Coronavirus and anti-smog

Previous concerns that asymptomatic coronavirus patients could spread the disease is partly the reasoning the CDC recommended social distancing. While some people with COVID-19 will experience a high fever, cough, and shortness of breath, David Cutler, MD, a family medicine physician at Providence Saint John's Health Centre in Santa Monica, CA, told POPSUGAR in a previous interview that many people who are infected experience no symptoms at all, and could unknowingly be spreading the virus.

But on June 8, the World Health Organisation (WHO) stated that while asymptomatic people can still spread the coronavirus, they're not the main ones transmitting the virus. American infectious disease epidemiologist, Maria Van Kerkhove, PhD, who is the head of WHO's emerging diseases and zoonosis unit, said at a news briefing from the United Nations agency's Geneva headquarters, according to, "From the data we have, it still seems to be rare that an asymptomatic person actually transmits onward to a secondary individual."

Dr. Van Kerkhove advised that government responses should focus on detecting and isolating infected people who actually have symptoms, and track anyone who might have come into contact with those individuals. "We have a number of reports from countries who are doing very detailed contact tracing. They're following asymptomatic cases. They're following contacts. And they're not finding secondary transmission onward. It's very rare," she said.

Asymptomatic cases are different from presymptomatic cases, which is when a person becomes infected with coronavirus but hasn't started showing symptoms yet. As reported, on April 1, the CDC published a report that noted social distancing is important because of the "potential for presymptomatic transmission." And on April 23, the CDC published another report that stated asymptomatic and presymptomatic cases "might contribute to transmission" of the virus in a nursing home setting.

Still, while there has been research published that has reported the asymptomatic and presymptomatic spread of the virus, Dr. Van Kerkhove said what we really want to focus on is following the cases of people who exhibit symptoms. She added that if we actually followed and isolated all the symptomatic cases, followed the people they came in contact with and quarantined them, we would "drastically reduce" the outbreak.

However, that doesn't mean you should completely disregard the guidelines for social distancing and staying safe during the pandemic, even if you're not showing symptoms; research and information about the virus keeps evolving, so it's best to follow best practices. You should still wear a mask when you're in public, stay six feet away from other people, frequently wash your hands with soap and water for at least 20 seconds, use hand sanitiser if you don't have access to soap and water, and follow your city and state's recommendations.

POPSUGAR aims to give you the most accurate and up-to-date information about the coronavirus, but details and recommendations about this pandemic may have changed since publication. For the latest information on COVID-19, please check out resources from the WHO, the NHS, and GOV.UK.

Image Source: Getty / filadendron
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