The following is a timeline of the COVID-19 pandemic in Beijing for the year 2021. January On January 1, Nancai Village, Nancai Town, Shunyi District, was adjusted to a medium-risk area.Xu Hejian, the spokesperson of the Beijing Municipal Government, said that during the epidemic prevention and control period, new recruits must hold a valid nucleic acid test certificate for 3 days.Shunyi District announced the suspension of all gathering commercial activities, prohibiting group dinners, annual meetings, and other activities, and suspending the opening of theaters, swimming pools, and other places where people gather to prevent people from gathering.On the same day, 1 new local confirmed case was added in Beijing. On January 3, 2 new local confirmed cases and 1 asymptomatic infection were added in Beijing. On January 4, 1 new local confirmed case was added in Beijing. On January 5, Xu Hejian, Deputy Director of the Propaganda Department of the Beijing Municipal Party Committee, Director of the Municipal Government Information Office, and Municipal Government Spokesperson announced that the capital's strict entry into Beijing management, joint prevention, control, and coordination mechanism had decided to implement "14+7" health management for people entering Beijing. On the same day, Beijing added 1 new local confirmed case, no new suspected cases and asymptomatic infections; no new imported confirmed cases, suspected cases and asymptomatic infections; 1 case was cured and discharged. On January 9, 1 new local confirmed case and 1 asymptomatic infection were added in Beijing, and 2 cases were cured and discharged. On January 10, 1 new local confirmed case and 4 asymptomatic infections were added in Beijing, and 1 case was cured and discharged. From January 11, Lianzhuang Village, Zhaoquanying Town, Shunyi District, had been upgraded to a medium-risk area. At the press conference that day, it was announced that the confirmed cases on January 9 concealed their itinerary, refused to cooperate with the flow investigation, and denied the trajectory information of relevant departments to assist in the investigation and verification, which had an extremely adverse impact on the prevention and control of the epidemic.Closed management was to be implemented in the rural areas of Shunyi District.On the same day, 1 new local confirmed case was added in Beijing. On January 17, 2 new local confirmed cases (both located in Tiangongyuan Street, Daxing District) were added in Beijing, and 1 new imported confirmed case was added. On January 19, there were 7 new