No evidence for benefits of influenza vaccine in institutional healthcare workers

Clinical question: 
How effective is influenza vaccination of healthcare workers on the incidence of laboratory-proven influenza, pneumonia, death from pneumonia and admission to hospital for respiratory illness in those aged 60 years or older resident in long-term care institutions (LTCIs)?
Bottom line: 
There was no effect of vaccination on laboratory-proven influenza, respiratory tract infections, admissions to hospital for respiratory illness or deaths due to respiratory illness. This review did not find information on co-interventions with healthcare worker vaccination: hand-washing, face masks, early detection of laboratory-proven influenza, quarantine, avoiding new admissions, prompt use of antivirals, restricting visitors and asking healthcare workers with influenza or influenza-like illness not to work.
The principal sources of bias in the studies related to attrition and blinding. The studies did not report on adverse events.
Older individuals in LTCIs at risk of influenza may be infected by their healthcare workers. There are no accurate data on rates of laboratory-proven influenza in healthcare workers. Vaccinating healthcare workers against influenza may reduce infections acquired from this source.
Review CD#: 
March, 2014
Authored by: 
Brian R McAvoy