Safety is no accident: live injury-free.

Yet without diligent efforts to maintain immunization programs in the United States and to strengthen them worldwide, vaccinepreventable diseases will remain a threat to children. As illustrations, consider the 2010 California outbreak of whooping cough where over 8,000 cases were reported to the state and where there were 10 infant deaths, or measles, which takes the lives of more than 100,000 children globally each year.