Factbox: Can frozen or chilled food spread coronavirus?

While the origin of a spike in coronavirus infections linked to a big wholesale food market in China's capital is not known, officials have warned against eating raw salmon after the virus was discovered on chopping boards used for imported salmon.

Below are comments from health officials, doctors, and other experts on the risk of infection from eating or handling frozen or chilled food.

Wu Zunyou, chief epidemiologist of China's Center for Diseases Prevention and Control

Wu told state media over the weekend that the virus can survive on the surface of frozen food for up to...