Mense (1905): “Handbuch der Tropenkrankheiten,” Leipzig.
Ross (1911): “The Prevention of Malaria,” London.
Scheube (1910): “Die Krankheiten der Warmen Länder,” Jena.
References to the treatments tried in many parasitic diseases can be found in the Sleeping Sickness Bulletin and Kala-azar Bulletin, both now superseded and greatly extended in scope in the Tropical Diseases Bulletin, published by the Tropical Diseases Bureau, Imperial Institute, London, S.W.
The following diseases, due to protozoa and allied forms, are discussed:—
| I. | Amœbic Dysentery. |
| II. | Trypanosomiases. |
| III. | Flagellate Diarrhœa and Dysentery. |
| IV. | Leishmaniases—Kala-azar and Oriental Sore. |
| V. | Spirochætoses—Relapsing Fevers, Yaws, Syphilis and Bronchial. |
| VI. | Malaria. |
| VII. | Balantidian or Ciliate Dysentery. |
I.—AMŒBIC DYSENTERY.
Amœbic dysentery, due to Entamœba histolytica (see pp. [34]–41), is present throughout the tropical world and also occurs in temperate zones.
Walker and Sellards[429] (1913) conducted important experiments with amœbæ on prisoners in the Philippine Islands. They showed experimentally that cultural amœbæ are non-pathogenic. As regards experiments with Entamœba coli, after feeding to twenty individuals they concluded that E. coli is a parasite of the human intestine but non-pathogenic and non-culturable. In a third series of experiments, after feeding with motile Entamœba histolytica, tetragena cysts were found in the stools later; when tetragena cysts were administered, motile E. histolytica were present in the subsequent stools. Some of the histolytica cases developed dysentery after a time. They lay stress on the necessity for the frequent examination of stools in order to detect carriers. The incubation period of entamœbic dysentery is usually long.