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Tuesday, December 4, 2012

Important Parasites

Organism

Reservoir

Transmission

Pathology

Entameoba Histolytica

Definitive Host: Human
Contaminated environment
Intermediate Host: Nil
Orofaecal
Intestinal Amoebiasis (Diarrhea, Dysentery), Metastatic Amoebiasis, Cerebral Amoebiasis, Pulmonary Amoebiasis, Splenic Amoebiasis

Plasmodium

Definitive Host: Female Anopheles
Intermediate Host: Human
Mosquito bite,
Across placenta,
Blood transfusion,
I/V drugs
Malaria

Giardia Lamblia

Duodenum of Human
Orofaecal
Giardiasis => Diarrhea + Anemia

Trichomonas Vaginalis

Genital tract of humans, especially Female
Sexual Contact
Trichomoniasis => Urethral + Vaginal Discharge, Itching, Dysuria

Leishmania Donovani

Definitive Host: Human Reticuloendothelial  system
Intermediate Host: Female Sandfly
Female Sandfly bite
Leshmaniasis =>Cutaneneous, Visceral (Kala – azar)

Diphyllobothrium Latum

Definitive Host: Humans, Bears, Dogs, Cats
Intermediate Host: Species of fishes
Improper cooked infected fish
Vit B12 Malabsorption
Megaloblastic Anemia

Taenia Saginata (Beef Tapeworm)

Definitive Host: Human
Intermediate Host: Muscles of Cattles
Orofaecal
Infected uncooked meat
IBS type of symptoms
Anemia

Echinococcus Granulosus

(Hydatid worm)

Definitive Host: Dog, Wolf, Fox, Jackal
Intermediate Host: Humans, Cattles, Horses
Orofaecal Route
Hydatid disease: Hydatid cysts in Liver , Lungs, Brain

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