The Ability of Some Viruses to Remain Inactive (Latent) for a Period

Multiple Choice

The ability of some viruses to remain inactive (latent) for a period of time is exemplified by ________.

A) influenza, a particular strain of which returns every 10-20 years
B) herpes simplex viruses (oral or genital) whose reproduction is triggered by physiological or emotional stress in the host
C) Kaposi's sarcoma, which causes a skin cancer in people with AIDS but rarely in those not infected by HIV
D) the virus that causes a form of the common cold, which recurs in patients many times in their lives