Detection of hospital outbreaks of influenza-like illness based on excess of incidence rates compared to the community

Philippe Vanhems; Nicolas Voirin; Thomas Bénet; Sylvain Roche; Vanessa Escuret; Corinne Régis; Marine Giard; Bruno Lina; Brigitte Comte; Brigitte Coppéré; René Ecochard

doi:10.1016/j.ajic.2014.08.011

Detection of hospital outbreaks of influenza-like illness based on excess of incidence rates compared to the community

Am J Infect Control. 2014 Dec;42(12):1325-7. doi: 10.1016/j.ajic.2014.08.011. Epub 2014 Oct 16.

Authors

Affiliations

¹ Epidemiology and Public Health Unit, Lyon 1 University, Lyon, France; Infection Control and Epidemiology Unit, Edouard Herriot Hospital, Lyon University Hospitals, Lyon, France. Electronic address: philippe.vanhems@chu-lyon.fr.
² Epidemiology and Public Health Unit, Lyon 1 University, Lyon, France; Infection Control and Epidemiology Unit, Edouard Herriot Hospital, Lyon University Hospitals, Lyon, France.
³ Department of Biostatistics, Lyon University Hospitals, Lyon, France; Biometry and Evolutive Biology Laboratory, Biostatistics and Health Unit, Lyon 1 University, Villeurbanne, France; National Center for Scientific Research, Mixt Research Unit 5558, Villeurbanne, France.
⁴ National Reference Center for Influenzae Viruses, Virology Laboratory, Lyon University Hospitals, Bron, France; Viral Pathogenesis Laboratory (VIRPATH), Mixt Team of Research 4610, Claude Bernard University of Lyon, René-Théophile-Hyacinthe Laennec School of Medicine, Lyon 1 University, Lyon, France.
⁵ Epidemiology and Public Health Unit, Lyon 1 University, Lyon, France.
⁶ Infection Control and Epidemiology Unit, Edouard Herriot Hospital, Lyon University Hospitals, Lyon, France.
⁷ Department of Geriatrics, Edouard Herriot Hospital, Lyon University hospitals, Lyon, France.
⁸ Department of Internal Medicine, Edouard Herriot Hospital, Lyon University Hospitals, Lyon, France.

PMID: 25444307
DOI: 10.1016/j.ajic.2014.08.011

Abstract

The risk of nosocomial influenza-like illness (noso-ILI) compared with that of community-acquired ILI was calculated during 3 influenza seasons (2004-2007) at a 1100-bed university hospital with a total of 21,519 hospitalized patients. Outbreaks of noso-ILI occurred in each season, although a protective effect against noso-ILI was also identified for other wards.

Keywords: Clusters; Nosocomial; Respiratory; Viral infection.

Publication types

Comparative Study
Research Support, Non-U.S. Gov't

MeSH terms

Community-Acquired Infections / epidemiology*
Community-Acquired Infections / virology
Cross Infection / epidemiology*
Cross Infection / virology
Disease Outbreaks*
France / epidemiology
Hospitals
Humans
Incidence
Influenza, Human / epidemiology*
Population Surveillance
Prospective Studies

Associated data

ChiCTR/NCT02198638