KPLU’s “Humanosphere” blog describes the rollout on Monday of a rotavirus immunization campaign sponsored by the GAVI Alliance “that aims to reach millions of vulnerable children in 40 low- or middle-income countries.” Rotavirus is “a major cause of the most severe and deadly form of diarrhea,” the blog states (Paulson, 7/18). According to a GAVI statement, “Six of the seven countries with the highest infant mortality rates from rotavirus worldwide are located in Angola, Liberia, Mali, Niger, Sierra Leone, and Somalia” (7/17).