Bonita Wohlers

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In two studies (1982 and 1985/86), the presence of enterotoxigenic E. coli (ETEC) and other enteropathogenic bacteria was investigated in 779 stool specimens from children and adults with and without diarrhoeal disease. ETEC was isolated from 2% of diseased children and 1.6% of adult patients, but also from 0.5% of asymptomatic persons. Mixed infections(More)
Between June 1981 and December 1982 the incidence of Vibrio cholerae, V. mimicus and V. parahaemolyticus was determined at two sampling sites on the Elbe River at Hamburg. A total of 183 strains was isolated from 147 water samples. Of these, 107 belonged to non-01 V. cholerae (ten strains producing a cholera-like enterotoxin); 33 were identified as V.(More)
BACKGROUND The Prostate, Lung, Colorectal and Ovarian Cancer Screening Trial (PLCO) is a US National Cancer Institute (NCI)-funded randomized controlled trial designed to evaluate whether certain screening tests reduce mortality from prostate, lung, colorectal, and ovarian cancer. To obtain adequate statistical power, it was necessary to enroll over 150,000(More)
The bacteriological examination of 357 specimens of untreated dried food products in the period 1980-1983 revealed a Salmonella contamination of 29 samples (8.1%). Herbs and spices were positive in 6.7%, teas in 5.3%, dried vegetables (except asparagus) in 2.9%, dried mushrooms in 6.8%, and dried asparagus products in 22.9%. On the other hand, salmonellae(More)
Description of three new Salmonella serotypes of the subgenera I, II and III, and four serological variants which have been isolated and diagnosed in 1977-1978 at the National Reference Centre for Salmonella, Institute of Hygiene, Hamburg. The strains are as follows: S. blitta 47:y:e,n,x; S. II 1, 40:Z42:1,5,7; S. III arizonae 52:k:Z53 (Arizona 31:29:25);(More)
The envelope antigen K1 found in the majority of Yersinia enterocolica (Y. ent.) strains belonging to the O group 10 as described by WAUTERS, was re-examined under the electron microscope, and identified as being fimbriae. These fimbriae envelop the bacterial cell with a dense fringe. Single filaments show a width of 2.5 to 1.7 nm whilst their length is(More)
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