The Chinese mainland added 3,235 new confirmed cases of the novel coronavirus on Monday, bringing the total number of confirmed cases to 20,438, the National Health Commission said.

On Monday, 64 new deaths and 5,072 new suspected cases were reported on the Chinese mainland. A total of 492 new severe cases, including 442 in Hubei province, the center of the coronavirus outbreak, and 157 recovered and discharged cases were also reported.

As of Monday, the number of suspected cases rose to 23,214 on the Chinese mainland. There were also 2,788 cases with serious symptoms, 425 death cases and 632 who had recovered and been discharged, data released by the commission on Tuesday morning showed.

At present, 221,015 close contacts of confirmed cases had been tracked, and among them 171,329 are under medical observation as of Monday.

The commission also received a total of 33 confirmed cases from Hong Kong, Macao and Taiwan, with 15 from Hong Kong, 8 from Macao and 10 from Taiwan.

Hubei province reported 2,345 new cases and 64 new deaths on Monday, raising the number to 13,522 and 414 respectively according to the province's health commission.

By midnight Monday a total of 10,990 cases in Hubei, including 1,567 with serious symptoms and 576 in critical condition, are receiving treatment in designated medical institutions.

The provincial commission said as of Monday that 396 cases had recovered and been discharged from the hospital, 68,988 close contacts of the infected are being tracked and 58,544 are under still medical observation.