U.S. Department of Health ADM Brett P. Giroir testified before the House Committee on Energy and Commerce about the Trump administration's response to the COVID-19 pandemic on Capitol Hill in Washington, DC on June 23, 2020.
Kevin Dietsch | Pool via Reuters
Most coronavirus transmissions come from people who are asymptomatic and do not develop symptoms, a top official from the Department of Health and Human Services said on Friday.
"Just having the feeling that you want to take a test is really not the best strategy, but we do know that most of the spread comes from asymptomatic people, especially young adults. So you have to cast a wide net and me think we are able to do that, said Adm. Brett Giroir, HHS's deputy secretary, in an interview on CNBC's "Squawk Box".
An asymptomatic person is someone with Covid-19 who has no symptoms and never develops them. Scientists have found that people who have no symptoms can spread the virus. This includes both asymptomatic people and people in the pre-symptomatic stage a few days before they show signs of the virus.
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