An elderly man wearing a face mask has his temperature checked before entering a community hospital in Shanghai on February 13, 2020.

The U.S. does "not have high confidence in the information coming out of China" regarding the count of coronavirus cases, a senior administration official told CNBC.

The official also noted that China "continues to rebuff American offers of assistance."

There are more than 60,000 confirmed cases of virus, with the vast majority occurring in China, and over 1,300 people have died. After several days of reporting a slowing number of new cases, Chinese officials said on Thursday there was more than 15,000 additional cases. The majority of those came from a change in how the numbers were reported, with the "clinically diagnosed" cases now counting as "confirmed."