Salmonella surveillance report no. 31, NOVEMBER 29, 1964
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Salmonella surveillance report no. 31, NOVEMBER 29, 1964

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    • Description:
      For month of October 1964 During October, 1,848 human isolations of salmonellae were reported, for an average of 462 per week, a decrease of 63 from the September figure. The percentage of Salmonella derby Isolations reported (4.6) remained approximately the same as that determined in September (4.2). This figure has been steadily decreasing since March of this year (Table VII). Prior to the much publicized interstate hospital-associated outbreak of salmonellosis due to S. derby which began in March 1963, the percentage was approximately 2.0. The percentage of reported S. lnfantis recoveries remained abnormally high this month (13.3 per cent), but decreased slightly from the 16.2 per cent figure from last month. Salmonella lnfantis was responsible for a large hospita associated outbreak in Philadelphia recently. A total of 543 nonhuman isolations were reported in October, for a decrease of 19 from last month.
    • Content Notes:
      I. Summary -- II. Reports of isolations from the states -- III. Current investigations -- IV. Reports from states -- V. Special reports -- Vi. International -- VII. Food and feed surveillance.
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