Continued U.S. investment in life-saving vaccines is essential

The phrase, “make the world a better place,” is used so commonly that it can seem devoid of meaning. It can be found in song lyrics, in canned food drives, anti-litter campaigns and even in support of military intervention abroad. But sometimes there are opportunities where the United States, as a nation, can have an undeniably positive impact on parts of the world that direly need our help.