[Production of gamma and alpha interferons by human blood leukocytes in sequential induction]

A schedule for human gamma and alpha interferon production by successive administration, at 2-3-day intervals, of the proper inducers (phytohemagglutinin and Newcastle disease virus (NDV), or staphylococcal enterotoxin A and NDV) into the same suspensions of peripheral blood leukocytes has been proposed. The schedule may be used in laboratory practice and manufacture.