Final answer:
Vaccines are available for both endo and exo toxins. Toxoids are used for endotoxins, while vaccines for exotoxins stimulate the production of antibodies that target specific exotoxins and prevent their harmful effects.
Step-by-step explanation:
Vaccines are available for both endo and exo toxins. Endotoxins are the toxic lipid A component found in the outer membrane of gram-negative bacteria, and vaccines for endotoxins are typically in the form of toxoids. Toxoids are inactivated bacterial toxins that activate the immune system to produce antibodies that neutralize the toxins. Exotoxins, on the other hand, are protein molecules produced by a variety of pathogenic bacteria, and vaccines for exotoxins stimulate the production of antibodies that target specific exotoxins and prevent their harmful effects.