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Flexible bronchoscopes are heat labile, complex and difficult to clean, and some nosocomial outbreaks related to bronchoscopy have been reported in literature. The aim of our study was to determine, through a systematic monitoring, whether bronchoscopes' cleaning and disinfection procedures have been correctly adopted by health operators.We conducted a 19 months-long prospective study in the Unit of Pulmonology at Careggi Teaching Hospital (Florence, Italy), analyzing endoscopes that were reprocessed through a high-level disinfection procedure. Samples collection was performed weekly by two trained operators. Results were organized in a database and then exported for descriptive and inferential statistical analysis.From February 2016 to September 2017 we collected 218 samples from bronchoscopes' valves (N=109) and from their inner channels (N=109). Staphylococci were found in 34 samples (15.69% of all samples). Pseudomonas was found in 11 samples (5.04% of all samples). Pseudomonas aeruginosa wasn't found in any sample.Our results came out to be better than similar studies in literature and demonstrated that a correct endoscopes' hygiene should be part of a more complex strategy of surveillance and control of healthcare-associated infections. However, a continuous monitoring of endoscopes could provide a wider view about this problem, and more reliable results.

In the food processing industry disinfectants should ensure the quality and microbiological safety of food without the risks for the human health or environment. One of the potential and alternative less toxic disinfectants is the ozone. It is highly effective and environmentally acceptable disinfectant applicable on several places of food production premises, e.g. on equipment and directly on food products., U prehrambenoj industriji dezinficijensi trebaju osigurati kvalitetu i mikrobiološku sigurnost hrane bez rizika za ljudsko zdravlje ili okoliš. Jedan od mogućih alternativnih i manje toksičnih dezinficijensa je ozon. Ozon je vrlo učinkovit dezinficijens i ekološki prihvatljiv na mnogim mjestima proizvodnje hrane, npr. na opremi i direktno na prehrambenim proizvodima, Die Aufgabe eines Desinfektionsmittels in der Lebensmittelindustrie besteht darin, die Qualität und mikrobiologische Sicherheit der Nahrung ohne Risiken für die menschliche Gesundheit und Umwelt sicherzustellen. Ozon zählt zu alternativen, weniger toxischen Desinfektionsmitteln. Es gilt als sehr effektiv, zeichnet sich durch eine geringe Toxizität aus und eignet sich ökologisch für zahlreiche Bereiche wie zum Beispiel offene (Reinigung offener Flächen) und geschlossene Flächen (Reinigung geschlossener Flächen), für Zubehör, unmittelbar an Lebensmitteln bei der Wasserdesinfizierung, für die Beseitigung von Gerüchen und Neutralisierung von Pestiziden., Nell’industria alimentare i disinfettanti devono garantire la qualità e la sicurezza microbiologica dei cibi senza alcun rischio per la salute umana e per l’ambiente. Uno dei disinfettanti alternativi e meno tossici è senz’altro l’ozono. L’ozono è un disinfettante molto efficace con un basso grado di tossicità e un basso impatto ecologico. È utilizzabile non solo sulle superfici aperte (trattamento igienico-sanitario delle superfici aperte COP) e sulle superfici chiuse (trattamento igienico-sanitario delle superfici chiuse CIP), ma anche sull’attrezzatura, direttamente sui prodotti alimentari, nel trattamento igienico-sanitario dell’acqua, nell’eliminazione dei cattivi odori e nella neutralizzazione dei pesticidi., En la industria alimentaria los desinfectantes deben asegurar la calidad y la seguridad microbiológica de la comida sin el riesgo para la salud humana y para el medio ambiente. El ozono es una de las posibles soluciónes alternativas y un desinfectante menos tóxico. El ozono es un desinfectante muy eficaz, de la toxicidad baja y ecológicamente aceptable en muchos campos como las superficies abiertas (saneamiento COP ) e interiores (saneamiento CIP) del equipo, directamente en los productos alimenticios durante el saneamiento del agua, en la eliminación del olor y en la neutralización de los pesticidas.