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 Herpes Simplex virus, causes recurrent cold sores in infected individuals. Which of the following explains the recurrent infections?

Which of the following pathogens primarily evades the immune system by pathogenic variation?

Both the respiratory and intestinal tracts are part of the mucosal immune system. One key difference between these two barrier tissues is

Attachment of HIV is possibe by the interaction of the…………………….with CD4

Individuals that lack all T cells have the most severe form of immunodeficiency (SCID) and will not survive past their first birthday without a bone marrow transplant from a healthy donor. These individuals fail to make antibody responses to the normal childhood vaccines because

The following are some mechanisms used by pathogens to evade immune system cells’ influences except:

In addition to Peyer’s patches that resemble systemic lymph nodes, the intestinal epithelium also contains several thousand isolated lymphoid follicles. Unlike the organized secondary lymphoid tissues in the mucosal immune system, these lymphoid follicles:

T cells homing to gut and those homing to skin can be differentiated by:

As AIDS pogresses, the quantity of ______ diminishes, and the risk of opportunistic infections increases.

In the absence of disease, large numbers of effector TH17 cells are abundant in the intestinal lamina propria. In a healthy individual, these TH17 cells