Vaccination saves 2 million to 3 million lives yearly. Reaching children who don't receive vaccines is the goal for World Immunization Week, April 24–30.
The yearlong international health response to combat Ebola has sharply reduced the rate of infection. Pushing case numbers to zero is still the goal.
The U.S. will commit $1 billion to Gavi, an international vaccine alliance to immunize millions of children in the poorest nations against deadly diseases.
Although Ebola has no known cure, scientists and pharmaceutical companies around the world are working hard to develop a vaccine against the virus.