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SummaryTypical murine typhus was obtained in male guinea pigs by inoculation of suspensions of Ctenocephalides felis, the cat flea. Negative findings were obtained with a suspension of flea eggs.At least five cases of typhus including one laboratory infection probably were acquired through the agency of cat fleas harbored by kittens carried away from a feed store.
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Irons et al. (1944) studied this question.
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