Table 4.

Summary of positive sera from the vaccinated 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

*Ovilis Enzovax (Intervet Deutschland GmbH, Unterschleißheim, Germany)

^§ according to the sheep farmers and the Thuringian sheep health authority