"Original antigenic sin" is best described as a phenomenon in which _____
a. a highly mutable virus gradually escapes from immunological memory and interferes with compensatory immune responses.
b. latent viruses periodically activate effector T cells specific for the original antigen recognized in the primary immune response.
c. the persistence of antigen is necessary to sustain maintenance of immunological memory.
d. memory T cells no longer express the same profile of adhesion molecules and cytokine receptors compared with the original profile of the naive precursor T cell.
A
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A medical term that means clotting cell is ________.
Fill in the blank(s) with the appropriate word(s).
The etiological agent responsible for leprosy is Mycobacterium leprae, which survives and replicates within the vesicular system of macrophages
Explain the difference between tuberculoid leprosy and lepromatous leprosy in the context of T-cell differentiation and effector function. What will be an ideal response?
The human papillomavirus (HPV) causes:
A) chlamydia. B) genital warts. C) gonorrhea. D) syphilis.
To lose one pound of body fat in one week (seven days), one should try to create a caloric deficit with exercise and/or diet of how many calories per day?
A. 200 B. 500 C. 1,000 D. 1,500 E. 3,500