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International quality control of phage typing of Staphylococcus aureus. International Union of Microbial Societies Subcommittee.

A questionnaire was sent to the 48 national typing centres for Staphylococcus aureus and 31 replies were received. Methods of phage typing varied and molecular methods were not universally available, although pulsed-field gel electrophoresis was offered by 13 centres. Results for a quality control phage typing exercise were received from 25 centres. Increased standardisation of methods and definitions are indicated. Differences from the consensus patterns were mainly due to typing at an inappropriate dilution of phage, but five strains caused difficulties in many centres. Overall reproducibility was good. Phage typing remains a cost-effective method for epidemiological studies, particularly on a large scale. The strains selected for the quality control exercise included many strains suitable for controlling molecular methods as well as testing phage typing. Molecular methods help in the validation of the conclusions which may be drawn from phage typing.

Bacterial Proteins↗

Epilepsy in North America: a report prepared under the auspices of the global campaign against epilepsy, the International Bureau for Epilepsy, the International League Against Epilepsy, and the World Health Organization.

In North America, overall epilepsy incidence is approximately 50/100,000 per year, highest for children below five years of age, and the elderly. The best data suggest prevalence of 5-10/1000. Potential effects of gender, ethnicity, access to care and socioeconomic variables need further study. Studies of epilepsy etiology and classification mainly were performed without modern imaging tools. The best study found an overall standardized mortality ratio (SMR) for epilepsy relative to the general population of 2.3. There is evidence to suggest a greater increase in patients with symptomatic epilepsy, particularly children. People with epilepsy are more likely to report reduced Health-related Quality of Life than controls. They have reduced income, and are less likely to have full-time employment. They suffer from persistent stigma throughout the region, in developed as well as developing countries. Poor treatment access and health care disparities for people with epilepsy may be related to insufficient economic resources, rural isolation, gender, ethnicity, and lack of public and physician knowledge of modern approaches to epilepsy care. Despite high costs and severe disability, epilepsy may attract somewhat less research funding from public and private sources than other less common chronic neurological disorders. A Plan for Epilepsy in North America should address: basic and clinical research; primary prevention research; translation to care; stigma, quality of life, and self-management; industry relations; government and regional relations; and regional integration and resource sharing.

Epilepsy↗