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Table 1 Average amount of PCV2 virus in pooled blood samples from pigs during a two-year period (log10 PCV2 copies/mL)

From: A two-year follow-up study of the PCV2 status of a Danish pig herd that was initially assumed to be PCV2-free

  10 pigs weighing 45 kg 10 pigs before slaughter
  PCV2 vaccinated PCV2 virus load (no. positive/no. tested) PCV2 vaccinated PCV2 virus load (no. positive/no. tested)
2010     
January Yes neg* Yes neg
March No neg Yes neg
May Yes 104** No 107**
June Yes neg Yes neg
August Yes neg Yes neg
October Yes neg Yes neg
November Yes neg Yes neg
2011     
Janaury Yes neg Yes neg
February Yes neg Yes neg
April Yes neg Yes neg
May Yes neg Yes 106 (1/10)
July Yes neg Yes neg
September No 105 (1/10) Yes neg
November Yes neg No 106(10/10)
December Yes neg Yes 105 (3/10)
2012     
January Yes neg Yes 105 (2/10)
  1. *Negative: the amount of PCV2 was below the detection limit (<3 log10 copies/mL).
  2. **Samples from 2010 were not investigated individually.