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Table 3 Incidence rate ratios of human brucellosis between periods 1997–1998 and 2000–2002

From: Incidence of human brucellosis in a rural area in Western Greece after the implementation of a vaccination programme against animal brucellosis

Period

Incidence rate ratio*

95% C.I.

2000–2002 vs 1997–1998

0.15

0.10 – 0.23

2000–2002 (bv**) vs 1997–1998

0.13

0.09 – 0.20

2000–2002 (av***) vs 2000–2002 (bv**)

0.20

0.08 – 0.52

  1. * Poisson regression
  2. ** before vaccination
  3. *** after vaccination