Volume 17, Number 3—March 2011
Research
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
, René van den Brom, Hendrik I.J. Roest, Annemarie Bouma, Piet Vellema, Maarten Pieterse, Daan Dercksen, and Mirjam Nielen
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.
Page created: July 25, 2011
Page updated: July 25, 2011
Page reviewed: July 25, 2011
The conclusions, findings, and opinions expressed by authors contributing to this journal do not necessarily reflect the official position of the U.S. Department of Health and Human Services, the Public Health Service, the Centers for Disease Control and Prevention, or the authors' affiliated institutions. Use of trade names is for identification only and does not imply endorsement by any of the groups named above.