Question

Provide two examples of how the immune response to bacterial antigens or toxins can cause severe disease and pathology. For each example, name the disease, the bacterial species, the corresponding bacterial toxin or antigen associated with the disease, and the immune response driving the pathology.

Answer 1

The harmful pathogens when attched to the host the causes diseases. The bacterium pathogens E.coli,shigella,salmonella, Neisseria gonorrhoeae .The bacterium can induce to host epithelial cells to engulf by the process of phagocytosis.This pathogen disrupt host cell and pass through and can extruded from host cell by a reverse phogicytosis process . During time of infection bacteria penetrate host cell by excreting enzymes and own motility.

The bacteria disease like Botulism the Causitive agent bacteria is clostridium Botulism in this disease Neurotoxin prevent the transmission of impulses and flaccid paralysis result.

The bacterial disease Scarlet fever is caused by bacterium Streptococcus pyogenes in which cytotoxin cause vasodilation and result is the rashes.

The immune responce by individual have a ability to kill harmful microbes by immunity .