Scrub Typhus (Mite Typhus) in Bombay with a Report on the Isolation of Causal Rickettsia *This work has been carried out under the auspices of the Indian Research Fund Association

Weil-Felix reaction with blood of patients suffering ̂ from scrub typhus during its course shows significant agglutination titres against yproteus XK strains. In Bombay. Patel (1940) reported on two cases but the titres were ^r below the diagnostic level. Later, two more cases clinically suspected and serologically confirmed were reported by Patel (1943) and Patel (1943). Systematic Weil-Felix reactions, carried out during 1945 by Savoor and by the senior author in 1946, revealed 11 and 16 cases of scrub typhus respectively. Although the serological evidence by Weil-Felix test, considered along with the clinical findings, was quite suggestive of the diagnosis of the scrub typhus, the etiological confirmation was lacking. The object