Chief officers and other City Hall staff were also vaccinated.
County assembly speaker Benson Mutura and journalists present were also vaccinated.
Several MCAs were also vaccinated.
Nairobi County continues to produce the highest numbers of Covid-19 cases and as of last week, the county accounted for 57.7 percent of the nation’s total.
Kananu noted that it was necessary to close the non-essential offices because City Hall has continued to be a red zone.
“It is important to note that we consider the safety of our employees and customers as core to our operations. It is in this regard that we need to consider reviewing our work environment and daily interactions,” Kananu added.
Some of the departments that will remain shut include the Youth and Sports department, Agriculture, Human Resource Department and part of the ICT department.
In Nairobi, residents can receive the vaccination at Mama Lucy, Pumwani, Mbagathi, KNH, Mathari, Memorial, Moi Airbase, National Spinal Injury, and Kenyatta University Teaching and Referral hospitals.
Private and faith-based health facilities selected as vaccination centres include St Francis Community, Jamaa Mission, Coptic, Nairobi, Ruaraka Uhai Neema, Mater, and Aga Khan University hospitals.