The sharp drop in new infections from a day earlier was driven by a further decline in new confirmed cases in Wuhan, the city hit hardest by the pathogen in China.
New cases in Wuhan fell to 111 from 193 a day earlier, and accounted for almost all of the 114 new infections in central Hubei province on Monday, Reuters reported.
Excluding Hubei, there were 11 new cases in mainland China on Monday.
That brings the total number of confirmed cases in mainland China so far to 80,151.
The death toll from the outbreak in mainland China had reached 2,943 as of the end of Monday, up by 31 from the previous day.
The central province of Hubei, the epicenter of the outbreak, reported 31 new deaths, while in the provincial capital of Wuhan, 24 people died.