The Lake County Public Health Department is holding vaccination clinics at two high schools this week for both students and community members. The first clinic takes place from 10 a.m. to 3 p.m. today, in the Lower Lake High School gym. The second clinic will take place from 4 to 7 p.m. Wednesday, in the Kelseyville High School Student Resource Center. Pfizer second doses and first doses as needed will be offered, as well as the Johnson and Johnson single-dose vaccine.