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Table 4 Seroprevalence of chlamydial infection in dairy cattle with different numbers of pregnancies in Guangzhou, southern China examined by indirect hemagglutination assay (IHA)

From: Seroprevalence of chlamydial infection in dairy cattle in Guangzhou, southern China

No. pregnancy No. examined No. positive Prevalence (%)
0 60 3 5.0
1 72 6 8.33
2 64 4 6.25
3 40 4 10.0
4 66 5 7.58
5 37 4 10.81
6 44 2 4.55
≥ 7 17 1 5.88
Total 400 29 7.25