Molecular detection of an importation of type 3 wild poliovirus into Canada from The Netherlands in 1993

Article Abstract:

An analysis of stool samples from individuals belonging to an orthodox religious community in Alberta, Canada, shows the presence of poliovirus type 3 which is similar to those isolated from poliomyelitis-infected patients in The Netherlands. The VPI/2A and the 5' nontranslated parts of the Canadian polioviruses are 99% similar to those from The Netherlands. The results of the study show that the polioviruses have been brought into Canada by contact between Canadian and Dutch members of the religious community that bans vaccinations.

Alberta, Poliovirus, Polioviruses

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Quantifying translocation of Listeria monocytogenes in rats by using urinary nitric oxide-derived metabolites

Article Abstract:

Measuring the amount of nitrate and nitrite in urine samples can be a noninvasive way of detecting the translocation of Listeria monocytogenes across the intestinal epithelium. This technique can obviate the need to kill animals and measure the amount of Listeria in their organs.

Measurement, Listeria monocytogenes, Nitrates, Intestinal absorption

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Population structure of rat-derived Pneumocystis carinii in Danish wild rats

Article Abstract:

The rat may not be a good model of Pneumocystis carinii infection. In a study of 51 wild rats and 12 laboratory rats, researchers found that the rat version of P. carinii was very different from the human version both genetically and ecologically.

Rats, Pneumocystis carinii

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