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Table 3 Summary results on positive proportions and virus titer present in the pooled-swab samples; unless stated otherwise, the results are for samples that are considered RT-PCR positive i.e., those with CT ≤ 35

From: Quantifying the effect of swab pool size on the detection of influenza A viruses in broiler chickens and its implications for surveillance

Subtype Pool size Number RT-PCR positive/Total (% a) Mean titer for PCR positive samples in EID50/ml Highest titer in EID50/ml Number FluDETECT positive (% b) Mean titer for FluDETECT positive in EID50/ml
H5 5 60/98 (61.2%) 101.60 104.26 17 (28.3%) 102.86
6 53/91 (58.2%) 102.09 104.32 18 (34.0%) 103.46
11 69/109 (63.3%) 101.78 104.00 17 (24.6%) 102.99
H7 5 69/74 (93.2%) 103.13 105.33 40 (58.0%) 103.87
6 78/80 (97.5%) 103.19 105.94 43 (55.1%) 103.92
11 69/73 (94.5%) 102.87 105.55 31 (44.9%) 103.73
  1. aAs a percentage of all samples of the specific virus subtype and pool size
  2. bAs a percentage of samples with CT ≤ 35