A patient with a high antibody titer to a pathogen for which there is no vaccination indicates that this person is currently infected with the pathogen or was infected in the past.

Question

Quizplus · Accepted Answer

A high antibody titer to a pathogen indicates that the immune system has responded to the pathogen, which means the person has been exposed to it through infection at some point, as there is no vaccination involved to trigger such an immune response.

A Patient with a High Antibody Titer to a Pathogen