Uploaded: Tue, Aug 3, 2021, 5:45 pm As COVID-19 cases continue to rise in San Mateo County, health officials have set a goal to vaccinate at least 80% of people in every community and subgroup by year-end. Overall, the county aims to vaccinate 90% of residents countywide. During a meeting of the San Mateo County Board of Supervisors on Tuesday, Louise Rogers, chief of San Mateo County Health, said once more that vaccines remain the most powerful tool amid the "concerning rise in the number of COVID-19 cases." "Each time a San Mateo County resident chooses to receive the vaccine, we are all safer. Thus our major focus remains maximizing the reach of vaccines among our residents," Rogers said.