Impregnation or coating of cotton and polyester fibers with cationic copper endows them with potent broad-spectrum antibacterial, antiviral, antifungal, and antimite properties (Borkow, G. and Gabbay, J. (2004). Putting Copper into Action: Copper-impregnated Products with Potent Biocidal Activities, FASEB Jounal, 18(14): 1728-1730). This durable platform technology enables the mass production of woven and non-woven fabrics, such as sheets, pillow covers, gowns, socks, air filters, mattress covers, carpets, etc. without the need of altering any industrial procedures or machinery, but only the introduction of copper oxide-treated fibers. The biocidal properties of fabrics containing 3-10% copper-impregnated fibers are permanent, are not affected by extreme washing conditions, and do not interfere with the manipulation of the final products (e.g., color, press, etc.). In this article, the authors describe data showing that (i) antifungal socks containing 10% w/w (weight/weight) copper-impregnated fibers alleviate athlete’s foot; (ii) antimicrobial fabrics (sheets) containing 10% (w/w) copper-impregnated fibers decrease bacterial colonization in a clinical setting; and (iii) these products do not have skin-sensitizing properties or any other adverse effects. Taken together, these results demonstrate the wide preventive and curative potential of copper oxide-impregnated apparel products.
West Nile (WN) virus is endemic in Israel. The last reported outbreak had occurred in 1981. From August to October 2000, a large-scale epidemic of WN fever occurred in Israel; 417 cases were confirmed, with 326 hospitalizations. The main clinical presentations were encephalitis (57.9%), febrile disease (24.4%), and meningitis (15.9%). Within the study group, 33 (14.1%) hospitalized patients died. Mortality was higher among patients >70 years (29.3%). On multivariate regressional analysis, independent predictors of death were age >70 years (odds ratio [OR] 7.7), change in level of consciousness (OR 9.0), and anemia (OR 2.7). In contrast to prior reports, WN fever appears to be a severe illness with high rate of central nervous system involvement and a particularly grim outcome in the elderly.
417 cases of West Nile (WN) fever were serologically confirmed throughout Israel; 326 (78%) were hospitalized patients. Cases were distributed throughout the country; the highest incidence was in central Israel, the most populated part. Men and women were equally affected, and their mean age was 54±23.8 years (range 6 months to 95 years). Incidence per 1,000 population increased from 0.01 in the 1st decade of life to 0.87 in the 9th decade. There were 35 deaths (case-fatality rate 8.4%), all in patients >50 years of age. Age-specific case-fatality rate increased with age. Central nervous system involvement occurred in 170 (73%) of 233 hospitalized patients. The countrywide spread, number of hospitalizations, severity of the disease, and high death rate contrast with previously reported outbreaks in Israel.
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