Publications by authors named "Peter H Van Keulen"

A new methicillin-resistant Staphylococcus aureus (MRSA) clone related to pig and cattle farming was detected in the Netherlands. We investigated the extent of S. aureus presence in meat and found 36 S.

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In The Netherlands, patients exposed to pigs or veal calves were recently shown to be at high risk of methicillin-resistant Staphylococcus aureus (MRSA) carriage. In Amphia Hospital (Breda, The Netherlands), 32% of patients in this risk group were shown to carry MRSA. This resulted in a 3-fold increase in the annual MRSA incidence.

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Increasing antibiotic resistance in gram-negative bacteria has recently renewed interest in colistin as a therapeutic option. The increasing use of colistin necessitates the availability of rapid and reliable methods for colistin susceptibility testing. We compared seven methods of colistin susceptibility testing (disk diffusion, agar dilution on Mueller-Hinton [MH] and Isosensitest agar, Etest on MH and Isosensitest agar, broth microdilution, and VITEK 2) on 102 clinical isolates collected from patient materials during a selective digestive decontamination or selective oral decontamination trial in an intensive-care unit.

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A pseudo-outbreak of hepatitis B virus caused by cross-contamination from a semiautomatic cap remover for blood collection tubes is reported. The source of the outbreak was elucidated by using basic epidemiological methods. Laboratories should always be critical about their results in order to identify contamination problems.

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MRSA ID was evaluated for its ability to identify methicillin-resistant Staphylococcus aureus. A well-defined collection of staphylococci was used (n = 998). The sensitivity after 24 h was 96.

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To investigate the effect of slow-release (SR) clarithromycin on colonization and the development of resistance in oropharyngeal and nasal flora, a double-blind, randomized, placebo-controlled trial was performed with 8 weeks of follow-up. A total of 296 patients with documented coronary artery disease were randomized in the preoperative outpatient clinic to receive a daily dose of SR clarithromycin (500 mg) (CL group) or placebo tablets (PB group) until the day of surgery. Nose and throat swabs were taken before the start of therapy, directly after the end of therapy, and 8 weeks later.

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The purpose of this review is to cover the literature on the prevention of postsurgical infections in the period January 2002 to May 2003. Only articles that address novel insights in the prevention of infections are included in this review. The most interesting findings were observed in preoperative screening of patients for nasal carriage of Staphylococcus aureus.

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Staphylococcus aureus is the second most frequent cause of nosocomial blood infections. We screened 14008 non-bacteraemic, non-surgical patients for S aureus nasal carriage at admission, and monitored them for development of bacteraemia. Nosocomial S aureus bacteraemia was three times more frequent in S aureus carriers (40/3420, 1.

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Background: Staphylococcus aureus nasal carriage is a major risk factor for nosocomial S. aureus infection. Studies show that intranasal mupirocin can prevent nosocomial surgical site infections.

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