Bacteria, viruses, parasites, and other germs (microbes) cause many human diseases. Vaccines can help protect against some of these microbes.
The 2016 recommended immunization schedules include changes to catch-up schedules, timing, and high risk conditions.
Data released recently shows that many immunization rates are below the Healthy People 2020 target rates. Vaccination (immunization) against infectious diseases saves millions of lives. Illness and death from diphtheria, pertussis, tetanus, measles, mumps, hepatitis, and other diseases can be prevented through immunization.