Anti-poverty group launches vaccine PSA

The anti-poverty group ONE launched a new public service announcement Tuesday aimed at getting lawmakers and world leaders to fund a program that makes vaccines more widely available to children in poor countries, especially in Africa.

The campaign is targeted specifically at a pair of vaccines that the group says would prevent several of the "biggest killers of children in the developing world." The PSA says the vaccines are among the most cost-effective ways to save children's lives. 

The group said its goal is to pressure world leaders for financial commitments ahead of a conference scheduled for June. It estimates that funding the vaccine program, called The Global Alliance for Vaccines and Immunization, would save 4 million lives over the next five years.