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Table 2 Results of swine serum samples tested for leptospires by MAT. Number (n) of samples examined, numbers (n) and percentage (%) of positive samples and farms with at least one positive sample per farm and year from January 2011 to September 2016, and totals

From: Passive surveillance of Leptospira infection in swine in Germany

Year Number of serum samples Positivesa Number of farms Positivesb
n % n %
2011 5908 964 16.3 856 508 59.3
2012 5472 1042 19.0 797 509 63.9
2013 5568 1076 19.3 718 434 60.4
2014 5106 993 19.5 659 416 63.1
2015 4733 1009 21.3 529 375 70.9
2016 / 01 to 09 3042 941 30.9 394 308 78.2
Total 29,829 6025 20.2 3953 2550 64.5
  1. aSamples with a titre ≥100
  2. bfarms with at least one positive sample per year