
In 2010, an outbreak of whooping cough in California infected more than 8, 000 people, resulting in the hospitalization of more than 800 people and the death of 10 infants.
In 2015, an outbreak of the measles in Disneyland infected more than 125 people.
Both the whooping cough and the measles are vaccine-preventable diseases (VPDs) that have been largely nonexistent in the United States for decades.