The endemic diseases of the southern states . , edema and serous effusion. (b) Chronic form. Symptomsof organic dissolution, arrhyth-mic heart, myocarditis, asystole, cyanosis, anasarca, marasmus,death. Ashford and Kings-^ division into slight, moderate, andmarked cases, and Stiles- into light, medium, and severe aremuch simpler and more satisfactory. Light cases are those in which the feces contain a few ova, butsymptoms, if present, are slight. Anemia is not particularlynoticeable, but fatigue is out of proportion to exertion and theremay be slight uneasiness in the HOOK-WORM
The endemic diseases of the southern states . , edema and serous effusion. (b) Chronic form. Symptomsof organic dissolution, arrhyth-mic heart, myocarditis, asystole, cyanosis, anasarca, marasmus,death. Ashford and Kings-^ division into slight, moderate, andmarked cases, and Stiles- into light, medium, and severe aremuch simpler and more satisfactory. Light cases are those in which the feces contain a few ova, butsymptoms, if present, are slight. Anemia is not particularlynoticeable, but fatigue is out of proportion to exertion and theremay be slight uneasiness in the HOOK-WORM DISEASE 463 Moderate cases are those in which there are definite anemiaand digestive disorders with their resulting symptoms. In severe cases symptoms of the first two forms are intenselyexaggerated, the heart weakens, and edema and ascites super-vene. A not altogether fanciful classification of the stages of hook-worm disease is into primary, secondary and tertiary, after thestages of syphilis. The primary stage is the stage of the initial. Fig. 91. —.1. Delia Carder, tlrant County, Arkansas, aged sixteen, practicallyan invalid from childhood, treated for malaria and tuberculosis, found heavilyinfected with hook-worms, treated. B. Delia Carder as she is today. (Rocke-feller Sanitary Commission.) lesion or port of entry of the organisms into the host—grounditch. The period of incubation of this stage is from a few hoursto a few days. This is followed by a secondary period of incu-bation, as in syphilis, during which time the parasites are imma-ture and unable to produce marked symptoms. The secondarystage begins after the parasites have reached the alimentary 464 ENDEMIC DISEASES OF THE SOUTHERN STATES canal, have matured, and have begun to produce ova in the feces,anemia and digestive disorders. As tertiary symptoms may bedesignated evidences of organic changes in other organs resultingin heart weakness and anasarca. General Description.—It is ordinarily from five to te
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Keywords: ., boo, bookcentury1900, bookdecade1910, booksubjectdiseaseoutbreaks
