A nurse is reinforcing teaching about preventing disease transmission with the parents of a child who has a streptococcal infection. Which of the following instructions should the nurse include?

A. "I'll give him acetaminophen for the pain.": Acetaminophen is used for pain relief and fever reduction but does not address disease transmission. It does not prevent the spread of the streptococcal infection. B. "I'll discard his toothbrush and buy another.": This is crucial because the streptococcal bacteria can remain on the toothbrush, leading to potential reinfection or spreading the bacteria to others. Replacing the toothbrush after starting antibiotics helps to reduce the risk of reinfection. C. "I'll continue to encourage him to drink lots of fluids.": Staying hydrated is important for recovery, but it does not prevent the transmission of the infection. D. "I'll take his temperature every 4 hours.": Monitoring temperature helps track the child’s condition but does not prevent the spread of the infection.