“…For instance, every state requires that if students are not adequately immunized, they must be excluded from school. In schools that employ nurses, rates of immunization compliance are higher (Keck et al, 2013; Salmon et al, 2004; Wilson et al, 2013), which also results in stronger herd immunity (meaning that fewer vaccine-preventable infections spread to those who cannot be immunized). Thus, fewer students miss valuable learning time, which translates to less need for tutoring and other academic services, and fewer teachers call in sick.…”