Exogenous pyrogen is?
High-Yield Explanation
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