A. Influenza C is the most common cause of seasonal influenza epidemics B. Antigenic drifts are abrupt, large changes in influenza virus, and antigenic shifts are minor changes C. Pediatric patients younger than 6 months of age are not at high risk of complications of influenza D. Viral shedding typically occurs for 5–10 days after illness onset E. Influenza symptom onset is usually gradual F. Unsure

A. Oseltamavir B. Zanamivir C. Peramavir D. Baloxavir E. Unsure

A. A fully immunized 8-year-old male exposed 36 hours ago B. A 15-year-old female with a history of solid organ transplant on immunosuppressant medications exposed 24 hours ago C. A 17-year-old female with allergies exposed 72 hours ago D. All of the above E. Unsure

A. AH should not get an influenza vaccine until she is 12 months' old B. AH should receive the influenza vaccine now and then yearly C. AH should receive the live attenuated influenza vaccine now, another dose at least 4 weeks later, and then yearly D. AH should receive the influenza vaccine now, another dose at least 4 weeks later, and then yearly E. Unsure

A. Oseltamavir 45 mg 2 times daily ? 5 days B. Oseltamavir 45 mg once daily ? 5 days C. Oseltamavir 51 mg 2 times daily ? 5 days D. Oseltamavir 51 mg once daily ? 7 days E. Unsure