Clinical and Bacteriological Studies on Hospital Outbreak of <I>Salmonella</I> Enteritidis Food Poisoning

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  • 院内で発生したサルモネラ食中毒の臨床的・細菌学的検討
  • インナイ デ ハッセイ シタ サルモネラ ショクチュウドク ノ リンショウテキ サイキンガクテキ ケントウ
  • Clinical and Bacteriological Studies on Hospital Outbreak of Salmonella Enteritidis Food Poisoning

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Abstract

We experienced a hospital outbreak of salmonella food poisoning after ingestion of omelet which was the hospital evening meal on August 8, 1999. Total number of patients was sixty-two (Male 25: female 37) and the mean age was 52.1 years old. Salmonella Enteritidis was isolated from the stool in 59 cases. Twenty-one of them were associated with the immunosuppression (12 with malignancy, 6 with DM, one with nephrotic syndrome, one with chronic nephritis and one with allergic purpura) Clinical symptoms of the patients were composed of watery diarrhea (100%), fever (88.7%), abdominal pain (82.3%), nausea (45.2%) and vomiting (25.8%). The laboratory data revealed leukocytosis (15/47=31.9%), increased CRP (44/46=95.7%), elevated creatinin (1/37=2.7%) and hypokalemia (5/42 =11.9%). MICs of 20 strains isolated in our laboratory almost coincided with each other indicating that the source of bacteria was probably the same. In vitro, S. Enteritidis were sensitive to OFLX, TFLX, FOM, most of PCs, CEPs, AGs but resistant to MPIPC, CAM, CLDM, VCM. Therefore we administered LVFX to 59 cases (alone in 45cases, combination with FOM in 6 cases), NFLX to two children and FMOX to one pregnant woman. Lactobacillus was administered to 28 cases (45.2%) and antidiarrhetics were given to 6 cases (9.7%). Finally all patients improved within two weeks.<BR>We suspect that the salmonella food poisoning was due to infected egg. The partially cooked omelet would permit the growth of a sufficient inoculum to cause disease. To prevent food poisoning, we have to be consistent in cooking the food well (at 75°C, for more than 1 minute) and should not have omelets during the hot summer season.

Journal

  • Kansenshogaku Zasshi

    Kansenshogaku Zasshi 75 (2), 110-115, 2001

    The Japanese Association for Infectious Diseases

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