. A practical treatise on medical diagnosis for students and physicians . uld be unquali-fiedly pronounced malaria without an examination of the blood. It com-prises a group of fevers associated with the protozoan organism ofLaveran, and is characterized by periodic paroxysms of chill, fever, andsweat. Malaria is not contagious, but can be transmitted by inoculation. Malarial fevers, while most prevalent in tropical and subtropicalregions, are found also throughout the temperate zone, especially inautumn and spring. In Europe their favorite habitat is Italy, and inthe United States the Souther
. A practical treatise on medical diagnosis for students and physicians . uld be unquali-fiedly pronounced malaria without an examination of the blood. It com-prises a group of fevers associated with the protozoan organism ofLaveran, and is characterized by periodic paroxysms of chill, fever, andsweat. Malaria is not contagious, but can be transmitted by inoculation. Malarial fevers, while most prevalent in tropical and subtropicalregions, are found also throughout the temperate zone, especially inautumn and spring. In Europe their favorite habitat is Italy, and inthe United States the Southern and Southwestern States. Conditionsthat especially favor their development are marshes and swamps fedpartly by sea-water, low ground along streams of slow current, andfreshly upturned soil. The protozoan organism described by Laveran exhibits several differ-ent forms, which he regards as stages in the development of one organ-ism, but which may be different species. Golgi maintains that there areseveral distinct varieties of parasites whose periodicity in development. Culex and Anopheles. Anopheles is recognized by its spotted wings and tilted attitude. and sporulation corresponds with the different types of fevers. ThisPlasmodium malarice passes through one cycle of its development in thebody of a variety of the mosquito known as Anopheles claviger. Thedisease is contracted by the inoculation of the human subject by theinfected mosquito. Intermittent Fever. This is a type of malarial fever in which thetemperature remains normal between the paroxysms. A malarial paroxysm is characterized by (1) chill, (2) fever, and (3)sweating, occurring in the order named and in immediate time between the beginning of one paroxysm and the beginning ofthe next is called the interval, that between the conclusion of a parox-ysm and the beginning of the next the intermission. The intervalvaries in different forms of intermittent fever : in the quotidian there isa paroxysm every d
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