Ans: D, Zanamivir
Influenza is an acute disease that targets the upper respiratory tract and causes inflammation of the upper respiratory tree and trachea. The acute symptoms persist for seven to ten days, and the disease is self-limited in most healthy individuals.
Signs and symptoms of influenza in mild cases include a cough, fever, sore throat, myalgia, headache, runny nose, and congested eyes. A frontal or retro-orbital headache is a common presentation with selected ocular symptoms that includes photophobia and pain with different qualities.
Oseltamivir can be used for chemoprophylaxis for individuals one year and older in cases of outbreaks and exposure in high-risk groups. The side effects of oseltamivir include skin reactions that might be severe and sporadic transient neuropsychiatric events; these side effects form a barrier to the use of oseltamivir in the elderly and individuals that are at higher risk of developing these side effects.
Amantadine and rimantadine are effective against influenza A, but not influenza B.
During recent influenza seasons, high rates of resistance have been identified in influenza A for the adamantanes antivirals, and they are not recommended for treatment or prophylaxis against influenza A.
Zanamivir can be used for Influenza A and B.