Publications

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incidence of enteric viruses in groundwater from household wells in wisconsin.recent studies on the contamination of groundwater with human enteric viruses have focused on public water systems, whereas little is known about the occurrence of viruses in private household wells. the objective of the present study was to estimate the incidence of viruses in wisconsin household wells located near septage land application sites or in rural subdivisions served by septic systems. fifty wells in seven hydrogeologic districts were sampled four times over a year, once each season. ...200312571044
a multistate, foodborne outbreak of hepatitis a. national hepatitis a investigation team.we investigated a large, foodborne outbreak of hepatitis a that occurred in february and march 1997 in michigan and then extended the investigation to determine whether it was related to sporadic cases reported in other states among persons who had consumed frozen strawberries, the food suspected of causing the outbreak.199910029643
hepatitis a infections in wisconsin: trends in incidence and factors affecting surveillance, 1986-1995.from january 1986 through december 1995, 4,143 cases of hepatitis a virus (hav) infection were reported in wisconsin. the annual hepatitis a incidence remained stable from 1986 through 1988, with a mean annual rate of 4.7 cases per 100,000 (endemic hav incidence rate). during 1989-1993, the incidence of hav infection increased with a peak in 1992 of 19 cases per 100,000 population. a large foodborne outbreak (1992) and community wide outbreaks among african american residents (1989-1993) and nat ...19989617306
foodborne hepatitis a--missouri, wisconsin, and alaska, 1990-1992.person-to-person spread is the predominant mode of transmission of hepatitis a virus (hav) infection. however, based on findings for national surveillance for viral hepatitis, since 1983, 3%-8% of reported hepatitis a cases have been associated with suspected or confirmed foodborne or waterborne outbreaks (1). this report summarizes three recent foodborne outbreaks of hepatitis a and addresses the prevention of this problem.19938321179
human and bovine viruses in the milwaukee river watershed: hydrologically relevant representation and relations with environmental variables.to examine the occurrence, hydrologic variability, and seasonal variability of human and bovine viruses in surface water, three stream locations were monitored in the milwaukee river watershed in wisconsin, usa, from february 2007 through june 2008. monitoring sites included an urban subwatershed, a rural subwatershed, and the milwaukee river at the mouth. to collect samples that characterize variability throughout changing hydrologic periods, a process control system was developed for unattende ...201424908645
vulnerability of drinking-water wells in la crosse, wisconsin, to enteric-virus contamination from surface water contributions.human enteric viruses can contaminate municipal drinking-water wells, but few studies have examined the routes by which viruses enter these wells. in the present study, the objective was to monitor the municipal wells of la crosse, wisconsin, for enteric viruses and determine whether the amount of mississippi river water infiltrating the wells was related to the frequency of virus detection. from march 2001 to february 2002, one river water site and four wells predicted by hydrogeological modeli ...200415466536
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