"In the decade before 1963 when a vaccine became available, nearly all children got measles by the time they were 15 years of age. It is estimated 3 to 4 million people in the United States were infected each year. Also each year, among reported cases, an estimated 400 to 500 people died, 48,000 were hospitalized, and 1,000 suffered encephalitis (swelling of the brain) from measles."
Children with measles experience high fevers, diarrhea, dehydration and pneumonia. Children in the Philippines died because of lack of resources to treat dehydration and airway support (ventilators).
I have had a bout of shingles, and it came very near my eye, and I never want to experience that again. I have cared for people with disseminated shingles and zoster pneumonia, and I support a method to prevent those conditions.