Immunizations protect you from dangerous diseases that have severe, long-lasting effects like infertility, paralysis, or even premature death. As recently as the 1960s, hundreds of thousands of cases of diseases like polio and measles led to hospitalization, and in many cases, death. The introduction of vaccines more or less eradicated these illnesses from your community. Today, many doctors have never had to treat a patient for measles.
In addition to protecting yourself and your family, staying up to date with your vaccines also helps keep your community healthy. Some people legitimately can’t have certain vaccines because of severe allergies, neurological conditions, or immunologic diseases. They’re kept safe from illness because everyone around them is immunized and the disease can’t spread.