Reverse genetics studies of attenuation of the ca A/AA/6/60 influenza virus: the role of the matrix gene.

Abstract excerpt

The matrix (M) gene of influenza virus has been implicated in the attenuation phenotype of the cold adapted (ca) A/AA/6/60 vaccine. Previous studies have evaluated the ca M from A/AA/6/60 in different wild type (wt) virus backgrounds with varying results. In experiments described here, the ca M gene was transfected into the background of its own wt A/AA/6/60 to eliminate the possibility of confounding gene...

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