Final answer:
Providing antiviral medications to individuals with confirmed influenza is an example of tertiary prevention in an educational program about influenza, as it involves treating and managing the disease after it has occurred.
Step-by-step explanation:
The student has asked which activity should be included as an example of tertiary prevention in an educational program about influenza for community health nurses. Tertiary prevention aims to manage and improve outcomes for an illness that has already occurred. Among the options provided, providing antiviral medications to individuals with confirmed influenza is an example of tertiary prevention because it involves treatment to reduce the severity of the disease after it has been diagnosed.
Antiviral medications like inhaled zanamivir, oral oseltamivir, and intravenous peramivir are effective in shortening the course of influenza. Although vaccination is a crucial method to control viral diseases like influenza, it falls under the category of primary prevention, as it is designed to prevent the disease before it occurs. Meanwhile, activities such as encouraging hand hygiene practices and educating about early symptoms and treatment options would be considered primary and secondary prevention, respectively.