[Determination of the neuraminidase specificity of influenza A and B viruses using a modified lectin test].

A highly purified lectin was obtained from peanuts. The lectin test was modified for determination of the neuraminidase activity of influenza viruses. The test was found to be useful for the determination of the antigenic specificity of neuraminidase. It was found to be 10-50 times as sensitive as the Aminoff test and more economic. The potentials of lectin test are discussed.