Table 3. Efficiency and efficacy of the aerial oral rabies vaccination (ORV) campaigns in foxes.

ORV campaign	Type	Bait uptake(1) (%)	95% C.I.	Herd immunity(2) (%)	95% C.I.
December 2009–January 2010	Emergency	71.1	64.6–77.6	75.9	69.4–81.6
May–June 2010	Emergency	63.2	59.7–66.9	69.1	65.1–73.0
August–September 2010	Emergency	82.5	79.3–85.6	46.2	40.8–51.5
November–December 2010	Emergency	91.8	88.3–95.3	77.8	73.8–81.4
April–May 2011	Ordinary	67.7	61.7–73.6	74.6	70.7–78.3
November–December 2011	Ordinary	86.5	82.3–90.6	46.3	42.3–49.3
April–May 2012	Ordinary	92.7	89.5–96.0	60.1	56.1–64.1
November–December 2012	Ordinary	87.4	83.8–90.4	49.5	44.5–54.5
May 2013	Preventive	65.2	49.8–78.6	32.2	19.6–51.4

ORV: oral rabies vaccination.

⁽¹⁾Detection of biomarker in bones.

⁽²⁾Percentage of tested animals with antibody titre > 0.5 UI/ml.