A slit sampler for collecting and counting air-borne bacteria

Comparison of bacterial recovery by Reuter centrifugal air sampler and slit-to-agar sampler.

Bacterial recovery by a portable Reuter centrifugal air sampler and a standard Mattson-Garvin slit-to-agar air sampler was compared in a series of experiments. Microbial air quality was monitored in seven typical laboratory locations. Tests showed that the Reuter centrifugal air sampler yielded significantly higher recoveries than did the slit-to-agar unit.

The Destruction of Air-Borne Bacteria

A slit sampler for collecting T-3 bacteriophage and Venezuelan equine encephalomyelitis virus. II. Studies with Venezuelan equine encephalomyelitis virus.

The virus employed was the fourth mouse brain passage of a strain of VEE virus recovered from a human infection in Colombia. The virus was suspended in phosphate buffer soluton (PBS),' pH 7.5, containing 2 per cent normal rabbit serum (NRS) to which antifoam A2 had been added to facilitate aerosolization. The virus suspension was aerosolized with a Collison3 generator in a modified Henderson4 a...

The Lethal Effect of Relative Humidity on Air-borne Bacteria

The viability of pneumococcus, Type I, sprayed into the atmosphere from a liquid suspension was measured as a function of the relative humidity. When broth, saliva, or 0.5 per cent saline solution is employed as the suspending medium, a very high mortality rate is observed at relative humidities in the vicinity of 50 per cent. However, at humidities above or below this value the microorganisms ...

Food-Borne Bacteria Associated with Seafoods: A Brief Review

Consumption of contaminated seafoods is a major cause of death and hospitalization particularly in poor and developing countries. As with other food types, seafoods are also not free of food-borne pathogens and several risk factors are associated with its consumption. Regarding seafoods, there are regulatory hygienic alerts in importing countries. This paper briefly reviews the occurrence of se...