Q Fever among Culling Workers, the Netherlands, 2009–2010
Jane Whelan , Barbara Schimmer, Peter Schneeberger, Jamie Meekelenkamp, Wim van der Hoek, Mirna Robert–Du Ry van Beest Holle, and Arnold IJff
Author affiliations: Author affiliations: National Institute for Public Health and the Environment, Bilthoven, the Netherlands (J. Whelan, B. Schimmer, P. Schneeberger, W. van der Hoek, M. Robert–Du Ry van Beest Holle); European Centre for Disease Prevention and Control, Stockholm, Sweden (J. Whelan); Jeroen Bosch Hospital, ’s-Hertogenbosch, the Netherlands (P. Schneeberger, J. Meekelenkamp); ArboUnie, Utrecht, the Netherlands (A. IJff)
Figure 1. Residential location of 246 culling workers who were seronegative in December 2009 and their serostatus in June 2010 with location of 89 farms declared to be infected (by PCR-positive bulk-milk monitoring) in 2009 and 2010, the Netherlands. Ig, immunoglobulin. Seroconversion detected by ELISA was confirmed by immunofluorescence assay for 40 persons (38 [95%] at titers >128 and 2 [5%] at titers of 32).
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