A nurse is providing discharge teaching to the parent of a school-age child who has pharyngitis caused by group A beta-hemolytic streptococcus (GABHS). Which of the following instructions should the nurse include in the teaching?

Choice A rationale The pneumococcal vaccine prevents infections caused by Streptococcus pneumoniae, not Streptococcus pyogenes, which is the causative agent of GABHS pharyngitis. The vaccine is not indicated for GABHS pharyngitis and would not prevent future occurrences of this specific infection. The pneumococcal vaccine is typically administered to children in a specific age-based schedule to protect against pneumonia, meningitis, and bacteremia. Choice B rationale Group A beta-hemolytic streptococcus is a highly contagious bacterium transmitted through respiratory droplets and direct contact. Providing the child with a separate towel helps to prevent the spread of the bacteria to other family members by avoiding fomite transmission. Fomites, such as towels, can harbor the bacteria, and sharing them increases the risk of spreading the infection. This is a critical hygiene measure. Choice C rationale The child's toothbrush can harbor Streptococcus pyogenes even after antibiotic therapy has begun, potentially leading to reinfection. The bristles of the toothbrush can serve as a reservoir for the bacteria, and using the same toothbrush could reintroduce the microorganisms back into the oral cavity. Replacing the toothbrush after 24 hours of antibiotics ensures the infectious source is eliminated. Choice D rationale A child with GABHS pharyngitis is no longer contagious after completing 24 hours of antibiotic therapy. The antibiotics effectively kill the bacteria, reducing the bacterial load to a level where it is no longer transmissible to others. This duration ensures the child is no longer a public health risk, allowing them to safely return to a school setting. Choice E rationale Replacing orthodontic appliances is not a standard practice for treating GABHS pharyngitis. The appliances themselves are not a significant source of bacterial reinfection and do not need to be replaced. Proper hygiene, such as cleaning the appliances, is sufficient to prevent the spread of the bacteria, making this instruction unnecessary and incorrect.