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Table 1 Number (percentage) of influenza A virus samples that tested rRT-PCR positive by farm and activity performed

From: Farm management practices associated with influenza A virus contamination of people working in Midwestern United States swine farms

Farm

Processing

Vaccination

Weaning

 

Hands (%)

Coverall (%)

Total (%)

Hands (%)

Coverall (%)

Total (%)

Hands (%)

Coverall (%)

Total (%)

A

1/14* (7.1)

3/15 (20)

4/29 (13.8)

13/16 (81.3)

8/8 (100)

21/24 (87.5)

7/8 (87.5)

6/6 (100)

13/14 (92.9)

B

0/5 (0)

0/5 (0)

0/10 (0)

5/5 (100)

3/3 (100)

8/8 (100)

1/1 (100)

3/3 (100)

4/4 (100)

C

2/17 (11.8)

6/20 (30)

8/37 (21.6)

8/8 (100)

8/8 (100)

16/16 (100)

6/6 (100)

6/7 (85.8)

12/13 (92.3)

Total

3/36 (8.3)

9/40 (22.5)

12/76 (15.8)

26/29 (89.7)

19/19 (100)

45/48 (93.8)

14/15 (93.3)

15/16 (93.8)

29/31 (93.5)

  1. *Number of positive wipes/total number of wipes tested (percentage)
  2. Samples were considered positive when the cycle threshold (Ct) value obtained by RT-PCR was below 35