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. 1999 Apr;73(4):3162–3168. doi: 10.1128/jvi.73.4.3162-3168.1999

TABLE 1.

Antiviral activity of DuIFN and chicken IFN

Species Type of IFN IFN titer (U/ml)a
Duck fibroblasts Chicken fibroblasts
Duck IFN-γ 6.1.7 512 ND
IFN-γ 3.1.2 2,048 128
IFN-α 25,000 2,048
Chicken IFN-γ NDb 128
IFN-α ND 50,000
a

Recombinant duck and chicken IFNs were assayed for their ability to inhibit the cytopathic effect of VSV in duck and chicken cells. 

b

ND, not detectable.