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Table 2 Results of commercial antigen immunoassays for AIV with oro-pharyngeal swabs by swab type and media

From: Optimal specimen collection and transport methods for the detection of avian influenza virus and Newcastle disease virus

Swab type

Assay A

Assay B

BHI

PBS

BHI

PBS

Non-flocked swab

1/45 (2.2)*a

12/45 (26.6)b

6/45 (13.3)a

14/45 (31.1)ab

Flocked swab

16/45 (35.6) b

12/33 (36.4)b

19/45 (42.2)b

13/33 (39.4)b

Foam swab

18/45 (40)b

1/45 (2.2)a

8/45 (17.7)a

0/45 (0)c

  1. Data from days 2, 3 and 4 post inoculation were pooled. Statistical groups (within each assay [A or B]) are denoted with letters, where groups which do not share a letter have a statistically significant difference with a p of value < 0.05. Abbreviations: BHI = brain heart infusion broth, PBS = phosphate buffered saline.
  2. *. Number positive/total tested (Percent positive).