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. 2016 Jan 18;2(1):36–46. doi: 10.1002/vms3.18

Table 1.

Comparison of results between ID‐vet NP ELISA and HI test for field sera from different ducks holdings

ID‐vet NP ELISA/HIa
Posb/pos Posc/neg Negd/pos Nege/neg % agreement
Holding 1 13 6 10 21 68
Holding 2 20 16 4 10 60
Holding 3 11 2 28 9 40
Holding 4 15 4 13 18 66
Holding 5 6 31 2 11 34
Holding 6 20 24 0 3 49
Holding 7 2 1 14 29 67

Sera from seven different holdings were tested by IDVet NP ELISA and HI test using reference antigens H5N3W and H7N7W.

a

Sera were tested using H5 or H7 antigens recommended by the reference European laboratory.

b

Number of sera tested positive with ID‐vet NP ELISA and HI test.

c

Number of sera tested positive with ID‐vet NP ELISA, but negative with HI tests.

d

Number of sera tested negative with ID‐vet NP ELISA, but positive with HI tests.

e

Number of sera tested negative with ID‐vet NP ELISA and with HI tests.