Influenza Update: IDSA 2018 Guidelines Detailed Review

Symptomatic influenza A and B infections cause worldwide morbidity and mortality every year. Annual vaccination remains the greatest prophylactic measure, but the vaccine is not 100% effective due to mismatch between the circulating and vaccine virus strains. Although most individuals will recover from influenza without incident, some specific patient populations are at high risk for severe complications. The Infectious Disease Society of America (IDSA) recently updated their clinical practice guidelines.1 We review these key updates, including recommendations on who to test, treat, and provide chemoprophylaxis.