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Table 1 Scores of host immune response levels in age-matched pigs with primary and secondary immune responses.

From: Cell-mediated and humoral immune responses in pigs following primary and challenge-exposure to Lawsonia intracellularis

   Humoral immunity Cell-mediated immunity
   Faeces SIgA Ileum SIgA Serum IgA Serum IgG IFN-γ
Group Pig #* d11-48 d67-75 d83/84 d6-48 d67-75 d6-48 d67-75 d11-48 d60-82
RE 37 + ++ + ++ ++ + + + ++
RE 38 + +   ++ + ++ ++ + ++
RE 52 + ++ ++ + ++ + ++ + ++
RE 55 + ++ ++ + ++ + ++ + ++
RE 57   +   + + ++ ++ + ++
RE 26 + + + + + + ++ + ++
RE 39   + + + + + + + ++
RE 53 + +   +   + ++ + ++
RE 61 + ++   + + ++ + + ++
RE 64   +   + +   + + ++
CC 36   ++    +   ++   +
CC 44    +   ++   ++   +
CC 51   ++    ++   ++   ++
CC 58   + ++   +   ++ + +
CC 59   + +   ++ + ++   +
CC 66 + ++ ++   ++   ++   ++
CC 70   + +   ++   ++   +
  1. The level of response for L. intracellularis-specific IgA in faeces and ileum content, IgA and IgG in serum, and antigen-specific IFN-γ-production in whole blood cultures were scored for individual pigs from the RE group and the CC group. Summed scores for the primary and secondary infection periods are categorised as: no response (BLANK), low-medium response (+), high response (++). * All pigs in the RE group were protected against re-infection as defined by: absence of bacterial shedding and serum acute phase protein response as well as low or no IHC score at termination of the experiment (see Result section and [6]).