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Experimental Tropical Typhus in Laboratory Animals. By Raymond Lewthwaite. Bulletins from the Institute for Medical Research, Federated Malay States, No. 3 of 1930. Paper. Pp. 10. Kuala Lumpur: Federated Malay States Government Printing Office, 1930.
This is a study of 164 cases of tropical typhus (so called by Fletcher and Lesslar: Bull. Inst. M. Research, Kuala Lumpur, F. M. S., 1925, number 2) occurring in the Federated Malay States from January, 1927, to April, 1929. Of this series 154 were of the K type (rural) and 10 of the W type (urban). Clinically the two types are identical and resemble exanthematic typhus. The clinical and serologic manifestations are given which make possible a differentiation from tsutsugamushi disease, leptospirosis and typhoid. The serum of the urban type agglutinates indologenic strains of Proteus X 19 but not the anindologenic strains. Serum of the rural type agglutinates the anindologenic but not the indologenic
Clinical and Epidemiological Observations on Tropical Typhus in the Federated Malay States. JAMA. 1931;96(13):1100. doi:10.1001/jama.1931.02720390110026
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