In all sites investigated except for soda-lime growth of microorganisms was observed with the possibility of cross infection.

Summary: Arai lAc, Azevedo RB -contamination of Anesthesia circuits by Pathogens.Background and objectives: evaluation of contamination of anesthesia circuits by collecting 56 culture samples from the circular system; previously reprocessed tracheas by disinfection with 1% hypochlorite or 2% glutaraldehyde after being washed in non-sterile water and soap and dried by using compressed air and stored in surgical grade paper; and from other places of the non-reprocessed respiratory circuit, before anesthetic procedures.