Question

which of the following is not true of a category a stage of an hiv infection?
a helper t count is 500 per mm³ or greater.
b an infected person is very contagious.
c most infected people have no symptoms.
d hiv blood test is positive.

Explanation:

• For Category A stage of HIV infection: Helper T (CD4) count is ≥500 per mm³, most have no symptoms, and HIV blood test is positive.
• However, in Category A, while the person is infected, the statement that "an infected person is very contagious" is not a defining or accurate characteristic specific to Category A (contagiousness isn't uniquely tied to Category A in a way that makes this statement true for identifying it, and other options are true of Category A).

Answer:

B. An infected person is very contagious.