Reduction of Coxiella burnetii Prevalence by Vaccination of Goats and Sheep, the Netherlands
Lenny Hogerwerf , René van den Brom, Hendrik I.J. Roest, Annemarie Bouma, Piet Vellema, Maarten Pieterse, Daan Dercksen, and Mirjam Nielen
Author affiliations: Author affiliations: Utrecht University, Utrecht, the Netherlands (L. Hogerwerf, A. Bouma, M. Pieterse, M. Nielen); Animal Health Service, Deventer, the Netherlands (R. van den Brom, P. Vellema, D. Dercksen); Central Veterinary Institute of Wageningen UR, Lelystad, the Netherlands (H.I.J. Roest)
Figure 2. Kaplan-Meier curves for cycle threshold (Ct) values of all samples (A–C) and for samples with positive and doubtful results for Coxiella burnetii (Ct<40) (D–F), the Netherlands, January 1–June 10, 2009. A, D) Uterine fluid; B, E) vaginal mucus; C, F) milk. Old, pregnant and lactating; young, nulliparous.
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