HL Kelsall

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The Infectious Diseases Unit of the Department of Human Services, Victoria, reported an increased incidence of Salmonella infections in early 1997. To 21 April 1997, 944 notifications had been received, passing the previous year's total of 915. Five outbreaks of five separate serovars have been investigated and traced to their sources. The outbreaks, their(More)
BACKGROUND In recent years, reduced participation has been encountered across all epidemiological study designs, both in terms of non-response as well as refusal. A low response rate may reduce the statistical power but, more importantly, results may not be generalizable to the wider community. METHODS In a telephone survey of 1413 randomly selected(More)
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