On 1 February Huanggang, Hubei implemented a measure whereby only one person from each household is permitted to go outside for provisions once every two days, except for medical reasons or to work at shops or pharmacies. Many cities, districts, and counties across mainland China implemented similar measures in the days following, including Wenzhou, Hangzhou, Fuzhou, Harbin, and the whole of Jiangxi Province.
On 4 February 2020, two more cities in Zhejiang province restricted the movement of residents. The city of Taizhou, three Hangzhou districts, and some in Ningbo began to only allow one person per household to go outside every two days to buy necessities, city officials said. More than 12 million people are affected by the new restrictions.
On 8 February 2020, it was announced that a Japanese and an American died due to the virus in Wuhan. They are the first foreigners killed by the virus. By that day the WHO announced the confirmed cases is now 34 886 cases and the number of deaths is 724.
On 12 February, the Hubei government adopted a broader definition of confirmed cases, which now includes clinically diagnosed patients diagnosed by their symptoms and CT scans but without a nucleic acid test, which can take days to process and delay treatment. "Using CT scans that reveal lung infection would help patients receive treatment as soon as possible and improve their chances of recovery," the provincial health commission said. This new methodology accounts for the sharp increase in Hubei's daily confirmed cases: 13,332 of the 14,840 newly confirmed cases in the province on 12 February were diagnosed clinically under the new definition.