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No definite relationship was seen between the number and duration of the lesions in any particular patient and the total number of nasal swabs from him which yielded Staph. pyogenes. Moreover, lesions were frequently present when the nasal swab was negative, and vice versa. In fact, we obtained no useful information from the nasal swabs after we had made the preliminary survey of the types of staphylococci involved in the outbreak.
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Johnston et al. (1961) studied this question.
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