Volume 17, Number 3—March 2011
Research
Reduction of Coxiella burnetii Prevalence by Vaccination of Goats and Sheep, the Netherlands
Table 1
Characteristics of goat and sheep farms sampled for Coxiella burnetii, the Netherlands, January–April 2010*
Farm | No. animals culled | No. live animals | Vaccination period | Bulk milk sample PCR result and date of change, 2010† |
---|---|---|---|---|
Unvaccinated goats | ||||
A | 550 | 178 | NA | + |
B | 102 | 530 | NA | Mar |
F | 53 | 938 | NA | Mar |
K | 121 | 649 | NA | Feb |
L |
324 |
367 |
NA |
+ |
Unvaccinated sheep | ||||
X |
128 |
378 |
NA |
Jan |
Vaccinated goats | ||||
H | 365 | 673 | 2009 Aug–Dec | Jan |
M | 719 | 3,557 | 2009 Dec–2010 Jan | + |
P | 625 | 1,750 | 2009 Sep–Dec | + |
Q | 685 | 281 | 2009 Aug–Oct | + |
R | 3,595 | 0 | 2009 Sep–Oct | + |
S | 180 | 358 | 2009 Oct | + |
T | 1,081 | 83 | 2009 Apr–Sep | + |
*Data from Animal Health Service and the Food and Consumer Product Safety Authority. Animals were vaccinated with Coxevac (Ceva Santé Animale, Libourne, France). No. live animals is the number of nonpregnant animals remaining after culling. NA, not applicable; +, positive.
†Shown are farms that had a positive PCR result at the start of the culling period (+) and those for which a PCR result changed from negative to positive during the culling period (date).