New California legislation requires middle and high school students to receive whooping cough vaccinations before starting school this fall. Previously only kindergarteners were required to receive booster shots for the highly contagious bacterial disease. Marin County Department of Health and Human Services will host Tdap immunization clinics between 10 a.m. and 2 p.m. on Friday, August 19, at the Marin County Office of Education and on Monday, August 22, at Hill Middle School in Novato.…