In this article we will discuss about the life cycle of trypanosoma gambiense. Trypanosoma gambiense is digenetic; i.e., it completes its life cycle in two hosts. The primary or definitive host is man. The mammals, like pigs, buffaloes, antelopes often act as reservoir hosts harbouring the parasite. The intermediate host is blood sucking insect called tsetse fly (Glossina palpalis). Life [...]
Transmission of E. histolytica from man to man occurs through its encysted stage and infection is effected through the ingestion of these cysts in food or drinks. It is to be noted that mature quadrinucleate cysts are the infective forms of this parasite. The contamination of food and drinks is occurred by: i. Faecal contamination of drinking water, vegetables and [...]
In this article we will discuss about: 1. Systematic Position of Leishmania Donovani 2. Speciation of Leishmania Donovani 3. Types 4. Habits and Habitat 5. Vectors 6. Symptoms and Pathogenesis 7. Clinical Features 8. Prophylaxis. Leishmania is an important pathogenic zoo-flagellate genus closely related to Trypanosoma. The genus Leishmania was created by Ross in 1903. The species L. donovani was [...]