Which of the following bacteria act by increasing c-AMP -: (A) Vibrio cholera, (B) Staphylococcus aureus, (C) E. coli, heat stable toxin, (D) Salmonella
Answer is A. Toxin acts by cAMP are: LT of E.coli, Cholera toxin, Pertussis toxin, Anthrax toxin (edema factor).