Exogenous pyrogen is?: (A) TNF-a, (B) Lipopolysaccharide, (C) Neurotropic factor, (D) IL-6
Answer is B. Ans. is 'b' i.e., Lipopolysaccharide * Pyrogens may be exogenous or endogenousa) Exogenous - Bacterial toxins (eg: LPS)b) Endogenous-IL-1, TNF-a, IL-6, Interferons, Ciliory's neurotropic factor