Officials question report of virus spreading before symptoms

By: Carla K. Johnson, The Associated Press Posted: 4:26 PM CST Tuesday, Feb. 4, 2020 Last Modified: 4:36 PM CST Tuesday, Feb. 4, 2020

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German health officials have raised questions about a report that suggested the new virus from China could be spread by people who are not yet showing symptoms.

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German health officials have raised questions about a report that suggested the new virus from China could be spread by people who are not yet showing symptoms.

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Hey there, time traveller!
This article was published 04/02/2020 (2377 days ago), so information in it may no longer be current.

German health officials have raised questions about a report that suggested the new virus from China could be spread by people who are not yet showing symptoms.

The report, published last week in the New England Journal of Medicine, raised concerns that controlling the virus will be more daunting if it turns out it is spreading before people know they are sick.

But officials at the Robert Koch Institute, Germany’s public health agency, said Tuesday the woman who set off a cluster of cases was taking anti-fever medicine. Recent interviews with her revealed she “might have had mild unspecific symptoms including back pain,” the institute’s Marieke Degen wrote in an email to The Associated Press.

The paper’s authors hadn’t spoken to the woman, and instead relied on information from other patients, according to the news site ScienceInsider, which first reported the German officials’ comments.

The study was not the only evidence that the virus can spread before a person feels sick. Two other reports from China also have suggested it, said Marc Lipsitch, an epidemiologist at Harvard’s public health school.

“This is still a point of great uncertainty and it’s an important uncertainty,” Lipsitch said.

The mild symptoms described by German health authorities are “about as close to no symptoms as you can get without calling it no symptoms,” he added.

The new virus causes fever, cough and shortness of breath. Some people have had only mild illness. In serious cases, the virus can cause pneumonia. Some patients have needed oxygen.

The medical journal, which published the report Thursday, confirmed it is aware of the new information. “We’re working on it but we’re not yet in a position to make a statement or answer additional questions,” said journal spokeswoman Jennifer Zeis.

The report had been cited by U.S. health authorities as they announced the first quarantine of healthy travellers. But U.S. health authorities had other reasons for ordering quarantines, such as the rapid increase in new cases reported by China.

The U.S. Centers for Disease Control and Prevention has said travellers returning from Hubei Province will be quarantined, and travellers from other parts of China will be actively monitored with help from state health departments.

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The Associated Press Health and Science Department receives support from the Howard Hughes Medical Institute’s Department of Science Education. The AP is solely responsible for all content.