Lettuce downy mildew, caused by the oomycete Bremia lactucae Regel, is a major threat to lettuce production worldwide. Lettuce downy mildew is a polycyclic disease driven by airborne spores. A weather-based dynamic simulation model for B. lactucae airborne spores was developed to simulate the aerobiological characteristics of the pathogen. The model was built using the STELLA platform by follow...

The air in laying hen houses contains high concentrations of airborne bacteria. The numbers of these bacteria can be influenced by the efficiency of the chosen sampling method. In the presented study, AGI-30 Impingers and the Coriolis(®)µ air Sampler were compared in terms of their efficiency in sampling aerobic mesophilic bacteria in a laying hen house. Measurements were conducted in a laying ...

Airborne transmission is of significance for a number of infectious diseases in pigs. The general principles of the airborne pathway, including aerosol production, decay and inhalation, are reviewed. Practical issues regarding aerosol sampling and sample analysis are also discussed. Details of the aerobiology of porcine diseases, including foot-and-mouth disease, Aujesky's disease, and respirat...

Exposure of human beings to different airborne pathogens has resulted in the emergence of epidemics of respiratory infections. This airborne transmission becomes even more prevalent in healthcare settings because of overburdened hospitals and the presence of immunosuppressed patients. Airborne infection control measures include a three-pronged approach, namely administrative control, environmen...

Sampling techniques to detect airborne Salmonella species (spp.) in two pilot scale broiler houses were compared. Broilers were inoculated at seven days of age with a marked strain of Salmonella enteritidis. The rearing cycle lasted 42 days during the summer. Airborne Salmonella spp. were sampled weekly using impaction, gravitational settling, and impingement techniques. Additionally, Salmonell...

Active topology management in the Airborne Network (AN) can provide improved overall network performance, efficiency, and scalability. Topology management and control in airborne networks are critical due to the high degree of platform dynamics involved. The RF links that form an airborne network must be capable of being established and reconfigured rapidly in response to aircraft joining and l...

Introduction and objective: Detection of the common allergen airborne fungi in any region is critical for prevention and treatment of allergic fungal diseases. Therefore, this study was conducted to identify the most common airborne fungal species of Isfahan, investigate their allergic reactions in animal and obtain local fungal strains for use as antigens in allergy tests to be used. Materials...

BACKGROUND Reviews on irritant and allergic airborne contact dermatitis have been previously reported in the literature. MATERIALS AND METHODS Here, we present an update based on recently published airborne-induced skin reactions. For this survey, we screened the journals Contact Dermatitis, Dermatitis, and included relevant articles from other journals during the period January 2007 to Decem...