A 19-year-old college student is being seen for a primary herpes infection with severe vulvar pain, fever, and malaise. Oral acyclovir has documented efficacy in treating this disease by reducing Question 18 options: The number of symptomatic days The number of viral particles that settle in the ventral root ganglia Leukocyte infection by active virus The degree of viremia in the chronic, asymptomatic phase of the infection .