AP BIOLOGY

THE HUMAN IMMUNE SYSTEM

AIDS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What age group makes up 21% of HIV diagnosis in the US?
A
65-75 year olds
B
13-24 year olds
C
25-34 year olds
D
45-55 year olds
Explanation: 

Detailed explanation-1: -An estimated 21% of all new HIV infections in the United States occur in teens and young adults. Yet most sexually active 13-to 24-year-olds often don’t realize that they’re at risk for HIV, so they don’t get tested. In fact, this age group is more likely than any other to have undiagnosed HIV.

Detailed explanation-2: -About 60% of youth with HIV do not know they are infected and so don’t receive treatment, putting them at risk for sickness and early death.

Detailed explanation-3: -HIV prevalence among young people (15–24 years): 0.3% [0.2–0.4%]. > HIV prevalence among young women (15–24 years): 0.4% [0.2–0.6%]. >

Detailed explanation-4: -Young people aged 13 to 24 are especially affected by HIV.

Detailed explanation-5: -The mean age of the women (39 ± 12.6 years), at the time of HIV diagnosis, was significantly lower compared with the age of the men (41.3 ± 14.2 years; P = 0.01). The mean follow-up period (53.6 ± 33.6 (range 13–126) months) was similar for the men and women.

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