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The bactericide quality of different materials containing copper (copper, brass, brass-sheet) was tested and particularly the effect of humidity and copper-concentration was examined. In first examinations (I. communication) (19) the materials were contaminated by hands, which were dipped into a suspension of different microorganisms (Micrococcus luteus,(More)
In this examination the bactericide qualities of different materials were tested. Particularly the effect of humidity was examined. 3 materials containing copper ("copper", "brass" and "brass sheet") and 2 materials not containing copper ("polyamide B" and "high-grade steel") were tested. The surfaces of the 5 types of material were contaminated with a(More)
Nosocomial infection (NI) was prospectively studied in hospitalized neonates during a 10-month period. The Centers for Disease Control (CDC) criteria (some specified for neonates) were used for surveillance. Forty-nine of 677 infants experienced 73 episodes of NI. The overall incidence was 10.8 NI/100 patients and 6.5 NI/1,000 patient days. The average(More)
It should be investigated whether UV-disinfection of natural and contaminated organic substances in surface and drinking water may generate a positive mutagenic effect. Selected organic pesticides (atrazine, simazine, metobromurone, methabenzthiazurone, dichlorprop) and organic compounds naturally present in water (phenylalanine, tyrosine, polysaccharides)(More)
Agreement on criteria for defining nosocomial infections is essential when surveillance is intended for quality assurance. The CDC criteria for patients < 12 months old were compared with locally developed criteria for neonates in a 10-month study of nosocomial infections in a Berlin University hospital. Six hundred and seventy-seven neonates were observed(More)
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