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Asymptomatic spread of corona virus is ‘very rare,' WHO says


Reign Mack

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Asymptomatic spread of coronavirus is ‘very rare,’ WHO says https://www.cnbc.com/2020/06/08/asy...-arent-spreading-new-infections-who-says.html


Preliminary evidence from the earliest outbreaks indicated that the virus could spread from person-to-person contact, even if the carrier didn’t have symptoms. But WHO officials now say that while asymptomatic spread can occur, it is not the main way it’s being transmitted.

“From the data we have, it still seems to be rare that an asymptomatic person actually transmits onward to a secondary individual,” Dr. Maria Van Kerkhove, head of WHO’s emerging diseases and zoonosis unit, said at a news briefing from the United Nations agency’s Geneva headquarters. “It’s very rare.”

If asymptomatic spread proves to not be a main driver of coronavirus transmission, the policy implications could be tremendous. A report from the U.S. Centers for Disease Control and Prevention published on April 1 cited the “potential for presymptomatic transmission” as a reason for the importance of social distancing.

“These findings also suggest that to control the pandemic, it might not be enough for only persons with symptoms to limit their contact with others because persons without symptoms might transmit infection,” the CDC study said.

To be sure, asymptomatic and presymptomatic spread of the virus appears to still be happening, Van Kerkhove said but remains rare. That finding has important implications for how to screen for the virus and limit its spread.

“What we really want to be focused on is following the symptomatic cases,” Van Kerkhove said. “If we actually followed all of the symptomatic cases, isolated those cases, followed the contacts and quarantined those contacts, we would drastically reduce” the outbreak.
 

Jramos013

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Stuff like this is to be spected with a novel virus. We are learning as we get more data. The models most scientist use were from similar patogens and they will keep getting adjusted as more data is obtained.
 
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