North Albany resident Karen Fitzgerald had many rewarding moments during her 42 years as a registered nurse, serving communities from New Hampshire to Oregon. But Fitzgerald says her volunteer work at the Linn County Public Health Departmentâs COVID-19 vaccination clinics the last two months has been extremely gratifying. âI just want to help,â Fitzgerald said. âI love it. Everyone is so grateful they can get immunized. It really makes people happy, and they frequently thank the volunteers.â Fitzgerald retired in 2019 and signed up with the State Emergency Registry of Volunteers (serv-or.org) this January. Thursday morning Fitzgerald was one of more than 50 volunteers assisting with a clinic at the Linn County Fair & Expo Center, one of four clinics held during the week. Her job for the day was filling syringes with vaccine doses.