In: Biology
Cysts are closed sac-like or capsule structures that may be filled with semisolid material, gaseous material, or liquid. Cyst of infectious agents like bacteria or worms are resistant to adverse conditions and they contain dormant forms of the pathogen within them.
The cyst protects the dormant worm or bacteria and when get access to host body, start the process of infection. Thus cysts are imoorimpo for propagation of infectious diseases.