Moonshot innovations get attention, but incremental improvements to existing solutions also quietly save lives.
WHO recently approved the first typhoid vaccine for infants; a lower-cost vaccine to protect children from diarrhea caused by rotavirus; and lighter, smaller cholera vaccine packaging (so health workers can carry more doses).
Meanwhile, India introduced a key vaccine to protect children from pneumonia, the leading cause of child death. Driving up coverage with solutions that are continually being improved will help the world meet its child mortality target.