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Sister chromatid exchange (SCE) was measured in peripheral lymphocytes of 90 workers from 14 hospital pathology departments in Israel who were occupationally exposed to formaldehyde (FA) and of 52 unexposed workers from the administrative section of the same hospitals. The mean exposure period to FA was 15.4 years (range 1-39). The results of SCEs are(More)
BACKGROUND Although influenza is usually a mild self-limiting disease it can cause serious complications in high risk groups. The economic costs of influenza are large due to the burden on the health system and absenteeism from work. There is evidence that the vaccine is underused in groups targeted for vaccination. OBJECTIVES To estimate: a) the(More)
The appearance of "new" infectious diseases, the reemergence of "old" infectious diseases, and the deliberate introduction of infectious diseases through bioterrorism has highlighted the need for improved and innovative infectious disease surveillance systems. Traditional current surveillance systems are generally based on the recognition of a clear(More)
In this paper we report the use of the open source Spatiotemporal Epidemiological Modeler (STEM, www.eclipse.org/stem) to compare three basic models for seasonal influenza transmission. The models are designed to test for possible differences between the seasonal transmission of influenza A and B. Model 1 assumes that the seasonality and magnitude of(More)
We studied the 2-year death rate of 246 adults discharged from hospital after experiencing acute West Nile Virus infection in Israel during 2000. The age- and sex-adjusted death rates were significantly higher than in the general population. This excess was greater for men. Significant adverse prognostic factors were age, male sex, diabetes mellitus, and(More)
Contamination of food with streptococci could present with unusual outbreaks that may be difficult to recognize in the early stages. This is demonstrated in a large food-borne outbreak of streptococcal pharyngitis that occurred in 2003 in a factory in Israel. The outbreak was reported to the public health services on July 2 and an epidemiologic(More)
Located along the migratory route of birds traveling between Africa and Europe, Israel is endemic for West Nile fever (WNF). Since the first recognized outbreak in 1951 [1, 2], further WNF outbreaks have been reported in Israel in 1952, 1953, 1957 and 1980, and from July to September 2000 a large outbreak of WNF swept through central and northern Israel,(More)
BACKGROUND In a previous study, we found a relatively low compliance with influenza vaccination among the elderly (65 years and over) in both 1998/1999 and 1999/2000 winters. Prior to the 2000/2001 winter season, a campaign was conducted by the Israeli Ministry of Health and the local health maintanance organizations for improving compliance with influenza(More)
OBJECTIVES To enhance timely surveillance of bacterial enteric pathogens, space-time cluster analysis was introduced in Israel in May 2013. METHODS Stool isolation data of Salmonella, Shigella, and Campylobacter from patients of a large Health Maintenance Organization were analyzed weekly by ArcGIS and SaTScan, and cluster results were sent promptly to(More)
BACKGROUND Early clinical signs of influenza caused by a pandemic strain will presumably not differ significantly from those caused by other respiratory viruses. Similarly, early signs of diseases that may result from bioterrorism are frequently non-specific and resemble those of influenza-like illness. Since the time window for effective intervention is(More)