The current outbreak

CUMULATIVE CASES BY YEAR

2015 MEASLES CASES BY STATE

The vaccine

U.S. MEASLES CASES SINCE 1944

The measles vaccine was introduced into the U.S. in 1963. The disease was declared eradicated by the CDC in 2000

KINDERGARTEN VACCINATION COVERAGE

Percentage of children enrolled in kindergarten opting out of measles vaccination for non-medical reasons

The illness

CONTAGION FACTOR

How the measles virus compares with other contagious viruses. The reproduction rate or R0, calculates the number of people likely to be infected by one person who has a disease.

HOW THE VIRUS SPREADS THROUGH THE BODY’S CELLS


Source: Centers for Disease Control and Prevention; Michigan Center for Public Health; WHO; Transmission Dynamics and Control of Severe Acute Respiratory Syndrome, Nature; Understanding the Dynamics of Ebola Epidemics, National Institute of Health