title: Multiple Francisella tularensis subspecies and clades, tularemia outbreak, Utah.
abstract: In July 2007, a deer fly-associated outbreak of tularemia occurred in Utah. Human infections were caused by 2 clades (A1 and A2) of Francisella tularensis subsp. tularensis. Lagomorph carcasses from the area yielded evidence of infection with A1 and A2, as well as F. tularensis subsp. holarctica. These findings indicate that multiple subspecies and clades can cause disease in a localized outbreak of tularemia.
authors.affiliation: Centers for Disease Control and Prevention, Fort Collins, Colorado 80521, USA.
authors.forename: Jeannine M
authors.initials: JM
authors.lastname: Petersen
authors.forename: Jennifer K
authors.initials: JK
authors.lastname: Carlson
authors.forename: Gabrielle
authors.initials: G
authors.lastname: Dietrich
authors.forename: Rebecca J
authors.initials: RJ
authors.lastname: Eisen
authors.forename: Jana
authors.initials: J
authors.lastname: Coombs
authors.forename: Aimee M
authors.initials: AM
authors.lastname: Janusz
authors.forename: Jodee
authors.initials: J
authors.lastname: Summers
authors.forename: C Ben
authors.initials: CB
authors.lastname: Beard
authors.forename: Paul S
authors.initials: PS
authors.lastname: Mead
mesh_terms: D000818:Animals; D015373:Bacterial Typing Techniques; D004175:Diptera / Q000235:genetics / Q000382:microbiology; D004196:Disease Outbreaks; D016521:Electrophoresis, Gel, Pulsed-Field; D005604:Francisella tularensis / Q000145:classification* / Q000235:genetics* / Q000302:isolation & purification; D034621:Hares / Q000235:genetics / Q000382:microbiology; D006801:Humans; D007793:Lagomorpha / Q000235:genetics / Q000382:microbiology; D016133:Polymerase Chain Reaction / Q000379:methods; D011817:Rabbits; D013045:Species Specificity; D014406:Tularemia / Q000453:epidemiology* / Q000382:microbiology; D014589:Utah / Q000453:epidemiology