Table 3.

The risk of clinical FMD by number of doses of the FMD Asia-1 Shamir vaccine received in an animal's lifetime. All cattle were over four months old and number of vaccine doses is highly correlated with age. NB: in the TUR 11 vaccine investigations animals had only received a maximum of one dose as this was a new vaccine. Furthermore these cattle had never previously been vaccinated for FMD Asia-1.

Number of vaccine doses in lifetime	Incidence risk	Relative risk
	Cases/total	[95% CI]
0	14/21 (67%)	0.75 [0.59–0.96]
1	102/115 (89%)	Baseline
2–5	58/84 (69%)	0.78 [0.67–0.9]
≥6	18/45 (40%)	0.45 [0.35–0.58]