According to the CDC, At 1 to 2 months, your baby should receive vaccines to protect them from the following diseases: Hepatitis B (HepB) (2nd dose) Diphtheria, tetanus, and whooping cough (pertussis) (DTaP) (1st dose) Haemophilus influenzae type b disease (Hib) (1st dose) Polio (IPV) (1st dose) Pneumococcal disease (PCV13) (1st dose) Rotavirus (RV) (1st dose)