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Table 5 Detection of swIAV in nasal swabs of weaned piglets according to their S/P ratio of swIAV specific serum antibodies at one week of age

From: Dynamic of swine influenza virus infection in weaned piglets in five enzootically infected herds in Germany, a cohort study

S/P ratio*

Piglets (n)

Percentage of swIAV positive** piglets (%)

0.0–0.3

6

33.3

0.4–11.8

318

64.7

 > 2000

36

27.8

  1. *S/P ratio ≥ 0.4 is regarded positive; ** RT-qPCR, cq ≤ 35
  2. Statistical analysis based on mixed logistic regression
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Porcine Health Management

ISSN: 2055-5660

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