A whooping cough outbreak in Northern California is getting worse. Marin County has one high school, Tamalpais High School in Mill Valley, now dealing with 93 cases. Officials are keeping parents updated but have not started a mask mandate. The highly contagious bacterial disease mostly affects children and could spread even more over spring break. Symptoms can show up five to 21 days after infection, with some developing a severe cough lasting weeks or months.
Whooping Cough Hits One Marin County School Hard
