Mass influenza vaccination in Ontario: is it worthwhile?
Demicheli
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Servizio Sovrazonale di Epidemiologia, ASL 20, Via S. Caterina da Siena 30, 15100 Alessandria, Piemonte, Italy. demichelivittorio@asl20.piemonte.it
D000328:Adult; D000368:Aged; D004196:Disease Outbreaks / Q000517:prevention & control*; D019317:Evidence-Based Medicine; D006801:Humans; D017589:Immunization Programs; D007251:Influenza, Human / Q000517:prevention & control*; D009864:Ontario