The leading causes of morbidity as of 2002 were diarrhea, bronchitis, pneumonia, influenza, hypertension, tuberculosis, heart disease, malaria, chickenpox, and measles.
en.wikipedia.org Measles is still a major problem in densely populated, less-developed countries with high birth rates and lacking effective vaccination campaigns.
en.wikipedia.org This is a good and simple model for many infectious diseases including measles, mumps and rubella.
en.wikipedia.org Other diseases such as rubella, polio, measles, mumps, chickenpox, and typhoid are nowhere near as common as they were a hundred years ago.
en.wikipedia.org Measles is actually a corruption of mizzens, which refers to the third and smallest mast on a ship.
en.wikipedia.org