Abstract:
:During one week in July 2012, two patients from the same ward at the municipal hospital in Vaasa, Finland, were diagnosed with septicaemia caused by Listeria monocytogenes. An outbreak investigation revealed eight concomitant cases of febrile gastroenteritis caused by L. monocytogenes on the same ward. Median age of the cases was 82 years and median incubation time for listerial gastroenteritis was 21 h (range 9-107). An additional 10 cases of invasive listeriosis caused by the same outbreak strain were identified across the whole country during the summer of 2012. Environmental investigation at the affected municipal hospital ward revealed ready-sliced meat jelly as the suspected source of the infection. During inspection of the meat jelly production plant, one pooled sample taken from a floor drain and a trolley wheel in the food processing environment was positive for the outbreak strain of L. monocytogenes. After the producer stopped the production of meat jelly, no further cases of listeriosis with the outbreak strain were identified via nationwide surveillance.
journal_name
Epidemiol Infectjournal_title
Epidemiology and infectionauthors
Jacks A,Pihlajasaari A,Vahe M,Myntti A,Kaukoranta SS,Elomaa N,Salmenlinna S,Rantala L,Lahti K,Huusko S,Kuusi M,Siitonen A,Rimhanen-Finne Rdoi
10.1017/S0950268815002563subject
Has Abstractpub_date
2016-10-01 00:00:00pages
2732-42issue
13eissn
0950-2688issn
1469-4409pii
S0950268815002563journal_volume
144pub_type
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