Senate Bill 277 in California sought to eliminate exemptions from mandatory school immunization requirements for personal beliefs. It aimed to prevent unvaccinated children from attending school and spreading infectious diseases. However, some argue this denies education and parental choice. Supporters counter that mandatory immunization is based in science and public health policy to protect vulnerable children. The impact of removing exemptions would be to help control diseases and align with principles of public health to prevent sickness in society through organized community efforts like immunization programs.