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Systematic review
Evidence remains lacking that vaccinating healthcare workers prevents influenza in elderly residents in long-term care
  1. Holly Seale
  1. School of Public Health and Community Medicine, University of New South Wales, Sydney, Australia
  1. Correspondence to Holly Seale Level 3, Samuels building, University of New South Wales, Sydney, Australia; h.seale{at}

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Influenza and vaccination

Seasonal influenza remains a major cause of morbidity and mortality, especially in the elderly.1 Elderly residents of long-term care facilities are especially susceptible because of their frailty, increased age and the presence of multiple comorbidities. Health care workers (HCWs) can introduce influenza into health care settings, as a significant number of HCWs (10 to 30%) are infected with influenza each winter2 3 and most of them continue to work, despite infection (approximately 50 to 80% of those infected).4 5

The USA Advisory Committee on Immunisation Practices recommends influenza vaccination to HCWs because of their contact with those at risk of complications from influenza.6 Despite these recommendations, only 36% of HCWs …

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