. Dr. Evans' How to keep well; . nto the lungs by theair and cause pneumonia. In a given epidemic the type of the disease is either pneumonic orbubonic, the septicemic cases being modifications of the bubonic type. The bubonic form starts with a chill, followed by a fever, whichmay go as high as 108°. About this time the glands begin to swell. Generallythe swelling is limited to one group of glands. This group is the one whichserves as a filter for that part of the body through which the infection is nausea, vomiting, aching, and profound prostration. Later there isstupor, deliri
. Dr. Evans' How to keep well; . nto the lungs by theair and cause pneumonia. In a given epidemic the type of the disease is either pneumonic orbubonic, the septicemic cases being modifications of the bubonic type. The bubonic form starts with a chill, followed by a fever, whichmay go as high as 108°. About this time the glands begin to swell. Generallythe swelling is limited to one group of glands. This group is the one whichserves as a filter for that part of the body through which the infection is nausea, vomiting, aching, and profound prostration. Later there isstupor, delirium, and unconsciousness. The glands may break down, maysuppurate. There may be hemorrhage from the nose or from any mucousmembrane. There may be small hemorrhages under the skin. Any physician who reads this description will recall cases of infection—so called blood poisoning—in which there was just this train of symptoms. Ifthe pared corn or the needle prick had been overlooked the case might haveeasily been called Fig. 132.—Dog Flea. 298 CONTAGIOUS DISEASES It takes a good deal of mental alertness and usually a bacterial examina-tion to decide whether a bubonic fever is due to pus germs or plague are cases of blood poisoning where the cocci get past the glands and intothe blood stream. If in these cases the cut toe or finger is overlooked alert-ness and judgment are required to decide whether the germ in the bloodis a streptococcus or a plague bacterium. The first requirement of plague prevention is that physicians be able toknow the disease when they see it. THE COST OF RATS Lantz of the national agricultural department wrote one of the articlesin the government bulletin on Rats. His article is on The Eat as anEconomic Factor, and he ends it with the statement, The keeping of ratsis exceedingly expensive. Did you ever think of yourself as a ratkeeper ? Lantz estimates that it costs $1 a year to keep a rat in a city. A farmercan keep one for abo
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