Letter: Congress must make a bold investment in life-saving vaccines

With the COVID vaccine, a new malaria vaccine, and a tuberculosis vaccine in development, we are seeing a renaissance in disease prevention. But we squander their life-saving power if the vaccines never reach communities that need them most.In 2022, 4.9 million children under the age of 5 died due mostly to preventable health problems like diarrhea, pneumonia and measles.But there is a proven strategy to fix this. Gavi, the Vaccine Alliance, is an international partnership that provides essentia