A rising antibody titer a few days apart indicates:
A)The patient had a past case of the disease.
B)The patient has a current infection.
C)Nothing, people always have antibodies in their serum.
D)All of the above mentioned choices are possible.
E)None of the above mentioned choices are possible.

Question

Quizplus · Accepted Answer

A rising antibody titer a few days apart indicates a current infection as the body is producing more antibodies in response to the pathogen. It does not necessarily mean that the patient had a past case of the disease, as antibody titers can also rise in response to a current infection with a similar pathogen. Choice C is not correct, as not all people always have antibodies in their serum. Choice D is partially correct, as both options a and b are possible, but choice A is not always applicable. Choice E is not possible, as at least one of the options mentioned in the question is correct.

A Rising Antibody Titer a Few Days Apart Indicates