title: [Acanthamoeba, Naegleria and invertebrates in wet areas of physiotherapy equipment in hospitals].
abstract: In the course of investigations on the occurrence of primary free-living amoebae in different aquatic habitats, especially Naegleria and Acanthamoeba, we now investigated the moist areas in physiotherapeutic departments of 10 hospitals. As a result 61% of the swabs taken in those areas were positive with one or several species of amoebae cultivated on NN-agar according to Page. Among many other species observed during this study we were able to isolate 47 strains of Acanthamoeba and only two strains of Naegleria. The Naegleria-strains did not appear to be thermophilic. Therefore they are part of the N. gruberi-complex, which is considered to include only non pathogenic strains. Six from 47 strains of Acanthamoebae isolated revealed pathogenic characters as demonstrated in the MIT (Mice inoculation test). As a remarkable result four of these 6 strains with proven pathogenicity were not thermophilic at + 40 degrees C. Eventually all strains even not being thermophilic should in future be tested on pathogenicity. Additionally, nematodes and rotifers were isolated from several samples.
authors.affiliation: Ernst-Rodenwaldt-Institut, Koblenz.
authors.forename: R
authors.initials: R
authors.lastname: Michel
authors.forename: T
authors.initials: T
authors.lastname: Menn
mesh_terms: D000048:Acanthamoeba / Q000302:isolation & purification* / Q000472:pathogenicity; D000818:Animals; D004866:Equipment Contamination; D004865:Equipment and Supplies, Hospital; D007448:Invertebrates / Q000302:isolation & purification* / Q000472:pathogenicity; D051379:Mice; D009253:Naegleria / Q000302:isolation & purification* / Q000472:pathogenicity; D026741:Physical Therapy Modalities; D014867:Water
chemical_list: D014867:Water
vernacular_title: Acanthamoeben, Naeglerien und Invertebraten in Feuchtbereichen von Physiotherapieeinrichtungen in Krankenhäusern.