TABLE 1-3 Universally Recommended Vaccinations
	Population Vaccination Dosage All young children Measles, mumps, rubella 2 doses   Diphtheria-tetanus toxoid and pertussis vaccine 5 doses   Poliomyelitis 4 doses   Haemophilus influenzae type ba 3–4 doses   Hepatitis B 3 doses   Varicella 1 dose   Hepatitis A (in selected areas)b 2 doses Previously unvaccinated or partially vaccinated adolescents Hepatitis Bc 3 doses total   Varicella If no previous history of varicella, 1 dose for children aged < 12 years, 2 doses for children aged >= 13 years   Mumps, measles, and rubella 2 doses, total   Tetanus-diphtheria toxoid If not vaccinated during previous 5 years, 1 combined booster during ages 11–16 years All adults Tetanus-diphtheria 1 dose administered every 10 years All adults aged >= 65d Influenza 1 dose administered annually   Pneumococcal 1 dose
a Only children below age 5 receive Haemophilus influenzae type b. b Hepatitis A was added to the schedule after the original table's publication. c An optional two-dose schedule for adolescents aged 11 to 15 was recently approved by the Food and Drug Administration. d The Advisory Committee on Immunization Practices has recommended that all adults aged >= 50 receive an influenza vaccination. SOURCE: Briss et al., 2000.