a primary *immunization given to infants typically at 2, 3, and 4 months of age. It protects against six diseases: diphtheria (D), tetanus (T), pertussis (whooping cough) acellular component (aP), polio (inactivated polio vaccine) IPV, Haemophilus influenzae type b infection (Hib) (see Hib vaccine), and Hepatitis B (HepB).
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