The primary pathological mechanism of infective diarrhea include the effection of bacteric toxin, the effection of bacillus, the osmosis diarrhea and the effection of virus.

• 感染性腹泻的主要病理机制是细菌毒素作用、病原菌直接侵袭作用、渗透性腹泻和病毒作用。