The United States has taken decisive action to protect Americans from the threat of a fast-moving coronavirus while offering help to China, President Donald Trump said on Sunday, but a key adviser said Beijing had not accepted the offers of assistance.

Trump appeared to downplay concerns about the flu-like virus that has killed more than 300 people in China and spread to more than two dozen countries, telling Fox television in an interview, ¡°We¡¯re gonna see what happens, but we did shut it down, yes.¡±

Concerns about the virus spurred the United States to declare a public health emergency and bar entry to foreign nationals who have recently visited China.