Which viral sexually transmitted infection is characterized by a primary infection followed by recurrent episodes?
a. Herpes simplex virus (HSV)-2
b. Human papillomavirus (HPV)
c. Human immunodeficiency virus (HIV)
d. Cytomegalovirus (CMV)
ANS: A
The initial HSV genital infection is characterized by multiple painful lesions, fever, chills, malaise, and severe dysuria; it may last 2 to 3 weeks. Recurrent episodes of HSV infection commonly have only local symptoms that usually are less severe than the symptoms of the initial infection. With HPV infection, lesions are a chronic problem. HIV is a retrovirus. Seroconversion to HIV positivity usually occurs within 6 to 12 weeks after the virus has entered the body. Severe depression of the cellular immune system associated with HIV infection characterizes acquired immunodeficiency syndrome (AIDS). AIDS has no cure. In most adults, the onset of CMV infection is uncertain and asymptomatic. However, the disease may become a chronic, persistent infection.
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