Recommendation comes as health officers see rise in COVID cases among unvaccinated, working individuals Uploaded: Thu, Jul 22, 2021, 2:28 pm Time to read: about 3 minutes Song Chen speaks with Selena Lara, an El Camino Health licensed vocational nurse, before receiving the Pfizer-BioNTech vaccine at an El Camino Health vaccination site in Sunnyvale on April 2, 2021. Photo by Magali Gauthier. As the Bay Area experiences an increased rate of COVID-19 cases, particularly among the unvaccinated population, three county health officers urged employers on Thursday to consider implementing a vaccination mandate in the workplace. At a virtual press conference July 22, health officers from Contra Costa, Santa Clara and San Francisco counties spoke on the current impact of COVID-19 within their respective jurisdictions, but were in unison when it came to the broader recent trends: The highly contagious delta variant has caused a surge in cases in the past few weeks and it's mostly coming from unvaccinated individuals.