Studies on recombination with influenza viruses in the chick embryo.  III. Reciprocal genetic interaction between two influenza virus strains.
D000818:Animals; D002642:Chick Embryo; D015316:Genetic Therapy; D006801:Humans; D009975:Orthomyxoviridae; D011995:Recombination, Genetic
INFLUENZA VIRUSES