The clinical findings may be attributable to the direct consequences of organ invasion by the filariform
larvae or to secondary gram-negative bacteraemia.10 The former must be the case in our patient since his blood culture did not grow any bacteria.
The life cycle in the human body begins with the penetration of the skin, usually of the feet by infectious filariform
Haratamori technique  was used to culture and hatch hookworm eggs to differentiate Necator americanus filariform
larvae from those of Ancylostoma duodenale.
After initial infection, mature females in the duodenum produce rhabditiform larvae that can develop into infective filariform
larvae and reinfect the host through penetration of intestinal mucosa.
The anterior tip of the larvae is rounded, with an oral cavity in the form of a straight tube and a filariform
Stool examination performed by direct wet mount technique showed filariform
larvae of Strongyloides stercoralis (Figure 1).
The helminth has the ability to multiply within a host, regardless of the mode of exogenous contamination, due to the transformation of rhabditoid larvae into infective filariform
larvae, leading to persistent infections.
These larvae exhibited smooth tegument, rounded head with a short buccal cavity, and a filariform
esophagus occupying approximately one third of the body length.
Strongyloidiasis is a difficult to treat because of its auto infective filariform
larva more so in cases with paralytic ileus due to poor absorption of the drug.
Punicagranatum commonly known as (Anar) the roots and bark of the stem of this plant has been used as astringent (antidiarrheal) and anthelmentic plant and experimentally proved that the alcoholic extract of the stem bark of this plant inhibit the hatching of Haemonchuscontortuseggs to filariform
larvae, the aqueous, alcoholic and ether extract from seeds of the plant Cucerbita maxima has proved its vermifugal activity experimentaly against Platyhelminthes (trematode and cestodes) and nemathelminthes (nematodes) both In Vitro as well as In Vivo trials.
Rhabditiform and filariform
larvae were isolated by stool culture (Figure, panel B).
(4) Infection is initiated by filariform
larvae present in soil or feces that use a histiolytic protease to penetrate skin and access the venous or lymphatic vessels of the human host.