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Table 1 Sera used in the present study

From: Correlation between the presence of neutralizing antibodies against porcine circovirus 2 (PCV2) and protection against replication of the virus and development of PCV2-associated disease

   

Number of pigs with

Origin of pigs

PCV2-infection

Serum samples available

high* PCV2-replication

clinical signs of PMWS

Gnotobiotic

experimental

0, 10, 15, 21 DPI

1/8

0/8

SPF conventional

experimental

0, 7, 10, 14, 21 DPI

4/10

4/10

Field cases (Belgium)

natural

4, 6, 8, 10, 12, 14 weeks of age

NA**

2/10

Field cases (Denmark)

natural

0, 3, 6, 9 weeks after mingling

NA**

13/26

  1. high*: = 104.3 TCID50/gram lymph node
  2. NA**: not available since PCV2-titres were not obtained from healthy pigs. All PMWS-affected pigs did contain high titres of PCV2