Characteristics of human intestinal Escherichia coli with changing environments.

To investigate if the characteristics of human intestinal Escherichia coli are changing with the environment of the host, we studied intestinal E. coli from subjects having recently migrated from a temperate to a tropical area. We determined the phylogenetic group, the prevalence of the antibiotic resistance, the presence of integrons and the strain diversity in faecal isolates from 25 subjects originally from metropolitan France and expatriated to French Guyana.

[Double reading in breast-cancer screening: what women know about it].

Objective: An officially-sponsored and free breast cancer screening in France was extended to all regions in 2004. These mammography procedures include double reading, which reduces the number of false negatives. Together with this official program, administered by associations in each district, voluntary individual screening is still available.