An unvaccinated elementary school teacher who took off their mask to read to students ended up infecting more than half of them last May -- and they went on to infect other students, family members and community members, California public health officials reported Friday.
원문출처 : https://www.cnn.com/2021/08/27/health/teacher-covid-students/index.html
원문출처 : https://www.cnn.com/2021/08/27/health/teacher-covid-students/index.html