. The Journal of tropical medicine and hygiene . ny that tuberculosis hasmateriallj increased during the War, but onaccount of the heavy demands placed upon themedical personnel of hospitals and dispensaries:accurate statistics are hard to obtain.(To be continued.) April 1, 1918.] THE JOURNAL OF TROPICAL MEDICINE AND HYGIENE. [Nc Vol. XXI. ©riflinal ([[/©mmunicattons. THE POSSIJ^LE FNTERMEDIAHY HOSTS OFSCHISTOSOMA IN SOUTH AFRICA. TUEUK liy F. (i. , , u significant relations!1 (,!■ hilliarzia .liseasr i tween t\vnth AlVi,-, and the distribution of the common fres
. The Journal of tropical medicine and hygiene . ny that tuberculosis hasmateriallj increased during the War, but onaccount of the heavy demands placed upon themedical personnel of hospitals and dispensaries:accurate statistics are hard to obtain.(To be continued.) April 1, 1918.] THE JOURNAL OF TROPICAL MEDICINE AND HYGIENE. [Nc Vol. XXI. ©riflinal ([[/©mmunicattons. THE POSSIJ^LE FNTERMEDIAHY HOSTS OFSCHISTOSOMA IN SOUTH AFRICA. TUEUK liy F. (i. , , u significant relations!1 (,!■ hilliarzia .liseasr i tween t\vnth AlVi,-, and the distribution of the common fresh-watersnail, Pliyxopsis africava. 1 have collected over100 inf(;cted specimens of this snail from variousinfected areas of Natal and the Transvaal; fromthe Durban brickfields, from the Umsindusi atMardt/.liur-,, from the Hex River at Rustenburg,uhero Dr. Habich. the district surgeon, tells mesome 70 per cent, of the boys and 10 per cent, ofthe girls are bilharzia carriers; from Magaliesburgand :Midders Drift, wiiere the rivers run into the. —Fully developed Cercaria frondosa (length of Cercaria G mm.) A. Pigmeuted eye-spots B. Oral sucker C. Ventral sucker —Youns specimens Cercaria frondnsa—Redia, containing Cercaria froudosa .A. Oral sucker H. Locomotor appendage C. Enclosed cercariir
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