Final answer:
Infants are typically examined every 2-3 months for the first 18 months to monitor their growth and development and to administer the recommended vaccines, such as the rotavirus vaccine and the DTaP series.
Step-by-step explanation:
The question asks about the typical frequency of infant examinations after beginning the immunization schedule. According to the United States Centers for Disease Control and Prevention (CDC), infants are typically examined every 2-3 months for the first 18 months. This schedule allows healthcare providers to administer the recommended vaccines at the appropriate intervals. Examples of vaccines given during these visits include the rotavirus vaccine, with the first dose between six and 15 weeks of age, and the DTaP series, which is administered at 2, 4, 6, and 15-18 months.
During these visits, infants are monitored for growth and development, and their developmental milestones are assessed. For instance, deciduous teeth generally start to emerge around six months of age, and by the first year, infants typically quadruple their birth weight and double in length. Thus, the regular medical examinations are essential for both administering vaccines and ensuring that the infant is developing healthily.