title: Investigation of an outbreak of 2009 pandemic influenza A virus (H1N1) infections among healthcare personnel in a Chicago hospital.
abstract: In May 2009, we investigated a hospital outbreak of pandemic H1N1 (pH1N1) infection among healthcare personnel (HCP). Thirteen (65%) of 20 HCP with pH1N1 infection had healthcare-associated cases, which were primarily attributed to transmission among HCP. Eleven (55%) of HCP with pH1N1 infection worked for 1 day or more after the onset of illness. Personnel working with mild illness may have contributed to transmission among HCP.
authors.affiliation: Centers for Disease Control and Prevention, Atlanta, Georgia 30333, USA. smagill@cdc.gov
authors.forename: Shelley S
authors.initials: SS
authors.lastname: Magill
authors.forename: Stephanie R
authors.initials: SR
authors.lastname: Black
authors.forename: Matthew E
authors.initials: ME
authors.lastname: Wise
authors.forename: Alexander J
authors.initials: AJ
authors.lastname: Kallen
authors.forename: Soo-Jeong
authors.initials: SJ
authors.lastname: Lee
authors.forename: Tracie
authors.initials: T
authors.lastname: Gardner
authors.forename: Farah
authors.initials: F
authors.lastname: Husain
authors.forename: Arjun
authors.initials: A
authors.lastname: Srinivasan
authors.forename: Susan I
authors.initials: SI
authors.lastname: Gerber
authors.forename: Michael
authors.initials: M
authors.lastname: Jhung
mesh_terms: D000328:Adult; D002641:Chicago / Q000453:epidemiology; D005260:Female; D006786:Hospitals, Urban; D006801:Humans; D053118:Influenza A Virus, H1N1 Subtype; D007251:Influenza, Human / Q000453:epidemiology* / Q000821:virology*; D008297:Male; D008875:Middle Aged; D016273:Occupational Exposure; D058873:Pandemics; D010564:Personnel, Hospital; D055815:Young Adult