Prescription antiviral medications with influenza virus activity may be useful adjuncts in influenza prevention and treatment and are most effective when administered within _______ of symptom onset.
a. 24 hours
b. 48 hours
c. 72 hours
d. 4 days
e. 12 hours
Answer: (b). Prescription antiviral medications with influenza virus activity may be useful adjuncts in influenza prevention and treatment and are most effective when administered within 48 hours of symptom onset.