The life cycle of parasitic and free-living generation of Strongyloides stercoralis were described. Factors influencing development of parasitic and free-living generations of S. stercoralis were also described.
Animal models (rat, mous, dog and monkey) being used in comparative investigations on immunobiology, pathology, clinical manifestations and treatment ot human atrongyloidosis were presented.
The role of specific, non-specific cellular and humoral immunity in different clinical forms of strongyloidosis is discussed. The role of immunosuppression in the immunocompromised patients with disseminated strongyloidosis is also given.