In the U.S., immunizations have reduced or eliminated many infectious diseases that once routinely killed or harmed many infants, children, and adults. However, the viruses and bacteria that cause immunization-preventable disease and death still exist and can be passed on to people who are not protected by immunizations.
Coronavirus disease (COVID-19) is a respiratory disease caused by SARS-CoV-2, and most often causes respiratory symptoms that can feel much like a cold, flu, or pneumonia. It is recommended that everyone 6 months of age and older get their primary series and booster dose of COVID-19 vaccine.
Influenza (flu) can lead to serious illness, including pneumonia. It is recommended that everyone 6 months of age and older get a flu vaccine every year. It is especially important for those at an increased risk for serious flu-related complications, including:
People with certain chronic medical conditions like asthma, diabetes and heart disease
California Law (Health and Safety Code 120325-120375) requires that children entering public or private school, including childcare, preschool, elementary, or secondary schools, receive required immunizations.