Kaiser Permanente Martinez Medical Offices is one of the many locations hosting COVID-19 testing and vaccination sites around Contra Costa County, located at 200 Muir Road in Martinez, Calif. on January 13, 2021. (Samantha Laurey/Bay City News)

Oakland-based health care provider Kaiser Permanente had just over 2,200 employees on unpaid administrative leave as of Monday because they were not vaccinated from COVID-19, Kaiser officials said.

The company told its employees Aug. 2 that they would have to be vaccinated. Seventy-eight percent of employees and doctors were vaccinated then. Now, the company says 92 percent are vaccinated.

Employees must get vaccinated and return to work by Dec. 1 to stay with Kaiser, company officials said.

Last year, Kaiser Permanente had 280,000 employees across eight states and Washington, D.C.

Kaiser officials have contingency plans in place in case some employees choose to stay unvaccinated. The plans include the possibility of hiring temporary workers.

The number of Kaiser Permanente employees who are vaccinated is growing daily, according to the company. Company officials said they are working with unvaccinated employees to allay concerns and educate them about the benefits and risks of the vaccine.

Keith Burbank is currently a fulltime reporter covering Alameda County and Oakland news for Bay City News. He has also worked on the Data Points project for Local News Matters, finding trends and stories about the region through data. In 2019, he was a California Fellow at the USC Annenberg Center for Health Journalism, producing a series about homeless deaths in Santa Clara County. He worked as a swing shift editor for the newswire for several years as well. Outside of journalism, Keith enjoys computer programming, math, economics and music.