Prevention of measles is important because it can have rare but serious complications. This is not a question of falsification, for measles can have serious consequences, but a shift in focus. Entries for mumps and rubella are similarly divergent. Rubella causes rash, mild fever, and swollen glands, and in rare cases causes, arthritis. Exposure of the unborn to rubella, which can result in miscarriage and birth defects, is the real danger.
Mumps generally produces fever, headache and swollen glands.
Some childhood diseases deliver more than aches and pains. Pertussis causes violent coughing attacks which can lead to suffocation. This illness can last for several months and lead to pneumonia, seizures and brain damage as well. Diphtheria creates a thick coating in the back of the throat and can lead to breathing problems, paralysis and heart failure. One in 20 diphtheria victims dies.