On Feb 12, 31 provincial-level regions on the Chinese mainland as well as the Xinjiang Production and Construction Corps reported 15,152 new cases of confirmed infections (including 13,332 clinical cases in Hubei province), 2,807 new cases of suspected infections and 254 deaths (242 in Hubei province, 2 in Henan province, 1 in Tianjin, 1 in Hebei province, 1 in Liaoning province, 1 in Heilongjiang province, 1 in Anhui province, 1 in Shandong province, 1 in Guangdong province, 1 in Guangxi Zhuang autonomous region, 1 in Hainan province and 1 in the Xinjiang Production and Construction Corps). Serious cases decreased by 174. 1,171 patients were released from hospitals after being cured. 29,429 people who had had close contact with infected patients were freed from medical observation.

As of 24:00 on Feb 12, the National Health Commission had received 59,804 reports of confirmed cases and 1,367 deaths in 31 provincial-level regions on the Chinese mainland and the Xinjiang Production and Construction Corps, and in all 5,911 patients had been cured and discharged from hospital. There still remained 52,526 confirmed cases (including 8,030 in serious condition) and 13,435 suspected cases. So far, 471,531 people have been identified as having had close contact with infected patients. 181,386 are now under medical observation.

On Feb 12, Hubei province reported 14,840 new cases of confirmed infections (including 13,436 in Wuhan), 1,377 new cases of suspected infections (including 620 in Wuhan), and 242 deaths (including 216 in Wuhan). 802 patients were released from hospitals after being cured, including 538 in Wuhan.

As of 24:00 on Feb 12, Hubei province had reported 48,206 cases of confirmed infections (including 32,994 in Wuhan) and 1,310 deaths (including 1,036 in Wuhan). In all, 3,441 patients had been cured and discharged from hospital, including 1,915 in Wuhan. There still remained 43,455 confirmed cases (including 30,043 in Wuhan), with 7,084 in serious condition (including 5,426 in Wuhan), and 9,028 suspected cases (including 4,904 in Wuhan).

In order to promote the early diagnosis and treatment of patients infected with novel coronavirus and ensure all the patients in Hubei can be received and treated, the diagnosis criteria have been differentiated between Hubei and other provincial regions. Clinically diagnosed criteria have been established in Hubei. Suspected cases with pneumonia images are diagnosed as clinical cases, so that they can receive standard treatment as soon as possible in accordance with the relevant requirements of confirmed cases, further improving the success rate of treatment. At present, 13,332 clinical cases reported in Hubei have been included in the confirmed case statistics, and all-out efforts have been made to enhance treatment, reduce serious cases and decrease the fatality rate.

As of 24:00 on Feb 12, 78 confirmed infections had been reported in the Hong Kong and Macao special administrative regions and Taiwan province: 50 in Hong Kong (1 had been dead  and 1 had been cured and discharged from hospital), 10 in Macao (2 had been cured and discharged from hospital) and 18 in Taiwan (1 had been cured and discharged from hospital).