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Table 2 Results from serological testing of Norwegian pig herds for Mycoplasma hyopneumoniae (Mhyo)

From: Successful eradication of Mycoplasma hyopneumoniae from the Norwegian pig population – 10 years later

Year Herds Samples Herds with Mhyo antibodies detected
2009 847 9620 0
2010 212 2745 0
2011 210 2415 0
2012 777 5348 0
2013 763 5348 0
2014 467 3321 0
2015 398 2938 0
2016 458 2972 2a
2017 385 3021 1b
2018 362 3070 0
2019 397 3430 0
  1. Legend: Results from serological testing of Norwegian pig herds for the occurrence of antibodies against Mycoplasma hyopneumoniae (Mhyo) in the national control program 2009–2019
  2. aSix and four samples from two herds respectively, tested positive for the occurrence of antibodies against Mhyo due to vaccination of gilts for export
  3. bTwo samples from one herd identical to one of the two herds from 2016, tested positive for the occurrence of antibodies against Mhyo due to vaccination of gilts for export