The Effects of Freeze-Thaw and UVC Radiation on Microbial Survivability in a Selected Mars-like Environment.

The purpose of this study was to determine survivability of , and under Mars-simulated conditions for freeze-thawing (-80 °C to +30 °C) and UV exposure alone and in combination. ATCC 25922, and remained viable following 20 successive freeze-thaw cycles, exhibiting viabilities of 2.3%, 96% and 72.

Changing Diagnostic Methods and Increased Detection of Verotoxigenic Escherichia coli, Ireland.

The recent paradigm shift in infectious disease diagnosis from culture-based to molecular-based approaches is exemplified in the findings of a national study assessing the detection of verotoxigenic Escherichia coli infections in Ireland. The methodologic changes have been accompanied by a dramatic increase in detections of non-O157 verotoxigenic E. coli serotypes.