Holy crap, one school in Napa has a 100% vaccination opt-out rate!

this is interesting:

James Watt, chief of the communicable disease control division with the California Department of Public Health, called high personal belief rates “a concern,” especially “because in some schools you really do have situations where you fall below a herd immunity threshold, and disease transmission is even more possible.”

“Herd immunity” means that there’s such a high vaccination rate that those who cannot be vaccinated, such as newborn infants or people with compromised immune systems, are protected.