Antiviral activity in sera of patients with influenza infection.

An interferon like activity was investigated in the sera of patients, very early during an Influenza A or B infection. A such substance was significantly more frequent among the patients who shed a Myxovirus Influenza than among the patients without virus isolation in the nasopharynx. The following relations are discussed : either is the interferon production merely associated without effect on the virus level? Or, on the other hand, in some cases is the rate or virus multiplication strictly directed by this interferon production? This study don't allowed to choose one of these hypothesis.