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Table 1 Results from the Mhyo screening of serum and colostrum samples from Norwegian pig herds

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

County Herds tested Herds Mhyo
positive (%)
Last year of Mhyo positive sample
Østfold 192 13 (6.8) 2003
Akershus 135 17 (12.6) 2005
Hedmark 257 33 (12.8) 2005
Oppland 253 16 (6.3) 2006
Buskerud 42 4 (9.5) 2005
Vestfold 160 10 (6.3) 2003
Telemark 44 0 (0)  
Aust-Agder 17 3 (17.6) 1999
Vest-Agder 29 2 (6.9) 2006
Rogaland 988 195 (19.7) 2008
Hordaland 106 6 (5.7) 2007
Sogn- og Fjordane 83 0 (0)  
Møre og Romsdal 93 14 (14.3) 2003
Sør-Trøndelag 124 17 (13.7) 2005
Nord-Trøndelag 523 57 (10.9) 2005
Nordland 114 9 (7.9) 2001
Troms 38 1 (2.6) 2002
Finnmark 13 1 (7.6) 2001
Norway 3211 398 (12.4) 2008
  1. Legend: Results from the screening of serum and colostrum samples from Norwegian pig herds serologically tested for the presence of antibodies against Mycoplasma hyopneumoniae (Mhyo) between 1994 and 2008