A nurse is planning a staff in-service about infection control measures to prevent the spread of influenza in school-age children. Which of the following instructions should the nurse include?

A. "Administer the influenza vaccine every 6 months.": The influenza vaccine is recommended annually, not every 6 months. This timing aligns with the seasonal nature of flu strains and the updated composition of the vaccine each year. B. "Administer antibacterial medication within 24 hr of the onset of symptoms.": Influenza is a viral infection, so antibacterial (antibiotic) medications are not effective unless a secondary bacterial infection occurs. Antiviral medications, such as oseltamivir, may be used within 48 hours of symptom onset. C. "Children should be considered infectious for 14 days after the onset of symptoms.": Children are typically infectious from 1 day before symptoms start to about 5–7 days after onset. Younger children and those with weakened immune systems may be infectious a bit longer, but not usually 14 days. D. "Wear a face mask when working within 3 feet of a child who is infected.": Influenza spreads via droplet transmission, which occurs when an infected person coughs, sneezes, or talks. Wearing a face mask within close proximity (e.g., 3 feet) helps reduce the risk of inhaling infectious droplets.