National security adviser Robert O’Brien urged Americans not to panic over the outbreak of coronavirus in China.

Coronavirus, a SARs-like illness, surfaced recently in Wuhan, China, and has caused global concern as travelers from the region carry the infection to new countries. At least eight cases of the virus have been confirmed in the United States, and China has placed the entire city of Wuhan under quarantine. While China’s move may calm some nerves, many have doubted the transparency shown by the country as to the severity of the outbreak.