%0 Case Reports
%T Legionellosis acquired through a dental unit: a case study.
%A Schönning C
%A Jernberg C
%A Klingenberg D
%A Andersson S
%A Pääjärvi A
%A Alm E
%A Tano E
%A Lytsy B
%J J Hosp Infect
%V 96
%N 1
%D May 2017
%M 28228245
%F 8.944
%R 10.1016/j.jhin.2017.01.009
%X In 2012, an elderly immunocompromised man died from legionellosis at a hospital in Uppsala, Sweden. The patient had visited a dental ward at the hospital during the incubation period. Legionella spp. at a concentration of 2000 colony-forming units/L were isolated from the cupfiller outlet providing water for oral rinsing. Isolates from the patient and the dental unit were Legionella pneumophila serogroup 1, subgroup Knoxville and ST9. Pulsed-field gel electrophoresis and whole-genome sequencing strongly suggested that the isolates were of common origin. This report presents one of few documented cases of legionellosis acquired through a dental unit.