Parasitology LAB 3 PDF

LAB:3 PARASITOLOGY \ \ 2  Eimeria tenella Classification Kingdom: Protozoa SubKingdom: Baciliata Infrakingdom: Alveolata Phylum: Apicomplexa Class: Conoidasida Order: Eucoccidiorida e.g.1 Eimeria tenella  Eimeria tenella Habit and habitat: intracellular endoparasite in...

LAB:3 PARASITOLOGY \ \ 2  Eimeria tenella Classification Kingdom: Protozoa SubKingdom: Baciliata Infrakingdom: Alveolata Phylum: Apicomplexa Class: Conoidasida Order: Eucoccidiorida e.g.1 Eimeria tenella  Eimeria tenella Habit and habitat: intracellular endoparasite in epithelium of intestinal caeca of chicken and small ducks. Host : only chicken Infective stage : Sporulated oocyst. Mode of infection: swallowing of sporulated oocyst with contaminated food or water. Diagnostic stage: Unsporulated oocyst. Disease: Coccidiosis LIFE CYCLE Sporulated Oocyst of Eimeria (Infective Stage )  Toxoplasma gondii Kingdom: Protozoa SubKingdom: Baciliata Infrakingdom: Alveolata Phylum: Apicomplexa Class: Conoidasida Order: Eucoccidiorida e.g.2 Toxoplasma gondii  Toxoplasma gondii Habit and habitat: endoparasite in tissues(skeletal muscle, myocardium, brain, and eyes. Final host : cat Intermediate host: man, birds, rodents(mice, rats and rabbit) and sheep. Infective stage : 1. Sporulated oocysts for human 2. Tissue cyst for cat Diagnostic stage: Tachyzoites in blood or bradyzoites in muscle tissues. Disease: Toxoplasmosis  mode of infection: a. For human 1. Eating undercooked meat of animals harboring tissue cysts. 2. Consuming food or water contaminated with cat feces or by contaminated environmental samples (such as fecal-contaminated soil or changing the litter box of a pet cat). 3. Blood transfusion or organ transplantation. 4. Transplacentaly from mother to fetus. b. For cat 1. consuming intermediate hosts(rodents or birds) harboring tissue cysts. LIFE CYCLE Tachyzoites of Toxoplasma Flotation Flotation