The lack of susceptibility to diseases of other species in humans may be due to the
A) lack of any cytokine production.
B) presence of endotoxins.
C) lack of any cytokine production AND secretion of exotoxins.
D) presence of endotoxins AND secretion of exotoxins.
E) lack of receptors that are recognized by adherence factors.

Question

The lack of susceptibility to diseases of other species in humans may be due to the
A) lack of any cytokine production.
B) presence of endotoxins.
C) lack of any cytokine production AND secretion of exotoxins.
D) presence of endotoxins AND secretion of exotoxins.
E) lack of receptors that are recognized by adherence factors.

Quizplus · Accepted Answer

The lack of susceptibility to diseases of other species in humans may be due to the lack of receptors that are recognized by adherence factors. Therefore, choice E is the best option. There is no evidence to suggest that the lack of any cytokine production or the presence of endotoxins or exotoxins is responsible for this lack of susceptibility.

The Lack of Susceptibility to Diseases of Other Species in Humans