Skip directly to search Skip directly to A to Z list Skip directly to site content
CDC Home

Volume 17, Number 3—March 2011

Research

Reduction of Coxiella burnetii Prevalence by Vaccination of Goats and Sheep, the Netherlands

Lenny HogerwerfComments to Author , 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)

Main Article

Table 6

Univariate survival analysis of PCR Ct values for Coxiella burnetii in positive and doubtful samples from culled animals in 13 small ruminant herds, the Netherlands, January–April 2010*

Group
Uterine fluid
Vaginal mucus
Milk
HR (95% CI)
p value
HR (95% CI)
p value
HR (95% CI)
p value
Unvaccinated 1 NA 1 NA 1 NA
Vaccinated 0.49 (0.39–0.70) <0.05 0.34 (0.28–0.42) <0.05 0.54 (0.39–0.75) <0.05

*Ct, cycle threshold; HR, hazard ratio; CI, confidence interval; NA, not applicable.

Main Article

Top of Page

USA.gov: The U.S. Government's Official Web PortalDepartment of Health and Human Services
Centers for Disease Control and Prevention   1600 Clifton Rd. Atlanta, GA 30333, USA
800-CDC-INFO (800-232-4636) TTY: (888) 232-6348 - Contact CDC–INFO