An outbreak of COVID-19 in a Marin County elementary school is a case study of the degree of contagion of the delta variant.
The Centers for Disease Control and Prevention reported that a teacher without a vaccine felt ill in May and assumed he had allergies. School policy forced them to be masked, but the teacher took off his mask to read aloud and in a few days, half of the 24 students tested positive.
The classroom design shows the results of the students ’COVID-19 tests by seat table. (August 27, 2021)
The infection rate in the first two rows of the classroom, the closest to the teacher, was 80%, eight out of ten students.
Sick students infected siblings and parents, for a total of 26 people, derived from a single case.
“It is safe to say that the index case was an unvaccinated person who was eligible to be vaccinated,” Dr. Matt Willis, county public health officer, at Mercury News. “All cases are unvaccinated people. This includes people who were eligible for vaccination but were not vaccinated and people who were not eligible for vaccination based on age. “
Jessica Aguirre of NBC Bay Area spoke with Tracy Lam-Hine of the Marin County Department of Health and lead author of the CDC study on the COVID-19 outbreak of the Marin County professor.