MANUAL OF HUMAN PROTOZOA 



Leishmania donovani 



Leishmania tropica 



Leishmania brasiliensis 



Plasmoditini vivax 

 Plasmodium malariae 

 Plasmodium falciparum 



Plasmodiufu ovale 



Isospora hominis 

 Sarcocystis lindemanni 



Kala-azar, visceral leish- 

 maniasis 



Oriental sore, cutaneous 

 leishmaniasis 



Espundia, naso-oral leish- 

 maniasis 



Benign tertian malaria 



Quartan malaria 



Subtertian or malignant ter- 

 tian malaria 



Ovale or mild tertian ma- 

 laria 



Coccidiosis 



Sarcosporidiosis 



The remaining thirteen species of human protozoa ap- 

 pear not to invade any living tissues of host. While un- 

 doubtedly absorbing a certain amount of fluid substances 

 in human systems, they seem to subsist also on micro- 

 organisms which abound in the lumen of the intestine. As 

 far as we can find, they do not bring about any noticeable 

 damage upon the host, and are therefore to be called the 

 commensals. Giardia intestinalis inhabits the duodenum 

 and other parts of the small intestine by being attached, 

 when not swimming about, to the gut epithelium, and thus 

 may cause abnormal conditions of the gut epithelium over 

 a wide area. A number of observers are inclined to think 

 that this flagellate is a pathogenic protozoan. 



The known protozoa which inhabit the human body 

 represent all four major groups of protozoa. Here they will 



