The American disease expert, a medical epidemiologist embedded in China’s disease control agency, left her post in July, according to four sources with knowledge of the issue. The U.S. CDC said it first learned of a “cluster of 27 cases of pneumonia” of unexplained origin in Wuhan, China, on Dec. 31. “CDC has had a 30-year partnership with China CDC and close collaboration,” the statement said. Zhu and other sources said U.S. leaders should not have been relying on the China CDC director for alerts and updates. No American CDC staffer besides Quick was embedded with China’s disease control agency, the sources said.

Source: Huffington Post March 22, 2020 22:07 UTC