Ribotyping as an epidemiologic tool forEscherichia coli

Tourism as an Economic Develpment Tool

Bacteriophage typing as an epidemiological tool for urinary Escherichia coli.

Phage typing was used to identify strains of Escherichia coli isolated from urinary and nonurinary sources. When eight phages isolated in Pennsylvania were used to type 717 cultures from Missouri, 50.3% of 624 urinary isolates and 34.4% of 93 nonurinary isolates were typable. Strains from nonurinary sources were not found commonly in urine. When five additional phages isolated in Missouri were ...

Evaluation of the echocardiogram as an epidemiologic tool in an asymptomatic population.

An asymptomatic adult population of 196 men and women was studied with the echocardiogram to derive age- and sex-specific "normal" values for a number of clinically used echocardiograhic variables. The results are in general agreement with previously published normal values. Body position during the examination, age and sex influence the echocardiographic results; body surface area correction n...

Computer-generated dot maps as an epidemiologic tool: investigating an outbreak of toxoplasmosis.

We used computer-generated dot maps to examine the spatial distribution of 94 Toxoplasma gondii infections associated with an outbreak in British Columbia, Canada. The incidence among patients served by one water distribution system was 3.52 times that of patients served by other sources. Acute T. gondii infection among 3, 812 pregnant women was associated with the incriminated distribution sys...

The Community as an Epidemiologic Laboratory

In this book Yves Le Grand tries to explain how all life, either directly or indirectly, depends upon light for its existence. He points out that it is a very rapid review of a large scientific discipline. It certainly is that. In some 170 pages the author attempts to cover such diverse subjects as the physics of light, vision, and bioluminescence. Although such topics as sunburn, light-influen...