The microbiologic contamination can occur in all the steps of an intraoral conventional or digital radiographic examination, unless some measures to avoid the cross-infection are applied. Scientific articles have shown that during the radiograph taking procedure, there is contact with the patient’s oral fluids (saliva and blood) and, consequently, the contamination of the film or digital sensor...

background: rice is one of the crops, which are prone to be contaminated with toxigenic fungi and their mycotoxins. this study aimed to investigate the natural occurrence of t-2 toxin in domestic and imported rice in iran. methods: in a cross-sectional descriptive study in winter 2007, 140 samples of imported rice (125 samples of thai and 25 sam­ples of pakistani rice) and 60 samples of iranian...

Atrazine has been identified in at least 20 of the 1,636 hazardous waste sites that have been proposed for inclusion on the EPA National Priorities List (NPL) (HazDat 2003). However, the number of sites evaluated for atrazine is not known. The frequency for these sites within the United States can be seen in Figure 6-1. Of these sites, all 20 are located within the United States and none are lo...

AIMS The purpose of this study was to investigate the prevalence of Salmonella in pigs at the moment of slaughter and in the slaughterhouse environment. METHODS AND RESULTS In total, five different commercial slaughterhouses were sampled during eight slaughterhouse visits. Carcass swabs, colon content and mesenteric lymph nodes were taken to reflect the animal status and from the slaughterhou...

BACKGROUND Cross-transmission of microorganisms by the hands of health care workers is considered the main route of spread of nosocomial infections. OBJECTIVE To study the process of bacterial contamination of health care workers' hands during routine patient care in a large teaching hospital. METHODS Structured observations of 417 episodes of care were conducted by trained external observe...

Mobile communication devices help accelerate in-hospital flow of medical information, information sharing and querying, and contribute to communications in the event of emergencies through their application and access to wireless media technology. Healthcare-associated infections remain a leading and high-cost problem of global health systems despite improvements in modern therapies. The object...

OBJECTIVES To compare the contamination level of physicians' hands and stethoscopes and to explore the risk of cross-transmission of microorganisms through the use of stethoscopes. PATIENTS AND METHODS We conducted a structured prospective study between January 1, 2009, and May 31, 2009, involving 83 inpatients at a Swiss university teaching hospital. After a standardized physical examination...

Human noroviruses (HuNoVs) are a primary cause of epidemic and sporadic cases of non-bacterial gastroenteritis; easily transmitted by the fecal-oral route which involves food as a frequent vehicle causing HuNoVs to be the major agent of food-borne illness worldwide. Primary factors contributing to the food contamination are contacts with infected food handler, cross-contamination during prepara...

The potential cross-contamination of pathogens between clean and contaminated produce in the washing tank is highly dependent on the water quality. Process wash water disinfectants are applied to maintain the water quality during processing. The review examines the efficacy of process wash water disinfectants during produce processing with the aim to prevent cross-contamination of pathogens. Pr...