We evaluated the abilities of three different avian influenza A viruses to attenuate the wild-type human influenza A/Korea/1/82 (H3N2) virus in squirrel monkeys, chimpanzees, and adult seronegative human volunteers. Two of these, avian influenza A/Mallard/NY/78 and A/Mallard/Alberta/76 viruses, appeared to be satisfactory donors of attenuating genes for the production of live influenza A reassortant virus vaccines for human use because the reassortants exhibited an acceptable balance between attenuation and immunogenicity.
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Snyder et al. (1986) studied this question.