Maggie was told she has a positive titer to measles.Which of the following could explain this?
A)She was vaccinated against measles.
B)She had measles sometime in her life.
C)She has measles now.
D)The test was a false positive.
E)All of the choices are correct.

Question

Quizplus · Accepted Answer

All of the choices could explain a positive titer to measles. Option A means she has immunity to measles from the vaccine; Option B means she has had measles before and now has immunity; Option C means she currently has measles, which is why her titer is positive; Option D is possible but less likely, as false positives are not common with titer tests.

Maggie Was Told She Has a Positive Titer to Measles