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Table 4 Summary of positive sera from the vaccinated flocks

From: High frequency of chlamydial co-infections in clinically healthy sheep flocks

  abortion rate§   # positive sera vs. # sera tested # of animals
flock # prior to vaccination upon vaccination vaccination* 1st serum d1/2 p.p. 2nd serum d21 p.p. total sero-conversion
13 1-10% 0.8-2% since 1995 all teggs 3/30 4/30 4/30 1/30
19 7% < 1% in 2004 complete flock; since 2005 all teggs 6/29 4/27 6/29 0/27
28 2009: 17% 6% since 1998 all teggs; in 2009 complete flock 9/29 9/29 9/29 0/29
30 < 1% < 1% since 1980 all teggs 2/29 0/25 2/29 0/25
31 < 1% < 1% since 2002 all teggs 2/29 2/29 2/29 0/29
36 < 1% 0 since 1995 all teggs 2/29 3/28 4/29 2/28
38 2003: 49% < 1% in 2003 complete flock; since 2004 all teggs 3/29 4/28 4/29 1/28
  1. *Ovilis Enzovax (Intervet Deutschland GmbH, Unterschleißheim, Germany)
  2. § according to the sheep farmers and the Thuringian sheep health authority