[Preventive influenza vaccination for 2 years in an industrial plant].
D000906:Antibodies / Q000032:analysis; D006385:Hemagglutination Inhibition Tests; D006801:Humans; D007251:Influenza, Human / Q000097:blood / Q000276:immunology / Q000517:prevention & control*; D009787:Occupational Medicine; D013557:Switzerland; D014611:Vaccination
D000906:Antibodies
Grippenschutzimpfung während zweier Jahre in einem Industriebetrieb.