micropara
Microscopy
A B C
A, B, C: Capillaria philippinensis eggs. These unembryonated eggs are peanut shaped and measure 36 to 45 µm in length by 21 µm in width. They have two inconspicuous polar "plugs" and a striated shell.
D E
D, E: Capillaria hepatica eggs in tissue. The egg in D (higher magnification) has a typically striated shell and shallow polar prominences.
TRICHURIS TRICHIURA
C.philippinensis adult: capillariasis is a severe, life-threatening infection
characterized by diarrhea, abdominal pain, malabsorption and cachexia.
After ingestion, infective larvae contained in fish are released
and develop to adult in the intestinal mucosa.
C.philippinensis adult: adults, larvae and eggs are passed in faeces.
Adult females (3-5 mm x 30 µm) release first stage larvae that
can infect the host penetrating through the epithelium and develop to adults
(autoinfection).
C.philippinensis larva: first stage larva released by the adult female.
Autoinfection is the cause of the severity of the disease.
A prolonged treatment with albendazole or mebendazole is required