A nurse is providing education to the caregiver of a school-age child regarding immunizations to prevent respiratory infections. Which of the following information should the nurse include in the teaching?

A. "Most vaccines require only one dose.": Many vaccines require multiple doses or boosters to provide full and lasting immunity, such as DTaP, MMR, and pneumococcal vaccines. Stating that most vaccines are single-dose is inaccurate and may give caregivers a false sense of protection. B. "The rhinovirus can be prevented with a vaccine.": Currently, there is no vaccine available to prevent rhinovirus infections, which are a common cause of the common cold. Education should focus on vaccines that prevent serious respiratory infections, such as influenza and pneumococcal disease. C. "Children who have underlying respiratory diseases should not receive vaccines.": On the contrary, children with chronic respiratory conditions are at higher risk for complications from infections and should receive recommended vaccines to reduce morbidity and prevent severe illness. D. "Early immunization is key to the prevention of illnesses.": Timely vaccination according to recommended schedules helps protect children from preventable respiratory infections before exposure. Early immunization is essential to developing immunity and reducing the risk of complications, particularly in school-age children.