Clinical characteristics in a sentinel case as well as in a cluster of tularemia patients associated with grape harvest

Autor: Nils Wetzstein, Iris Kärcher, Claus P. Küpper-Tetzel, Gerrit Kann, Michael Hogardt, Katalin Jozsa, Daniela Jacob, Roland Grunow, Gudrun Just-Nübling, Timo Wolf
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: International Journal of Infectious Diseases, Vol 84, Iss , Pp 116-120 (2019)
Druh dokumentu: article
ISSN: 1201-9712
DOI: 10.1016/j.ijid.2019.04.031
Popis: Background: Tularemia is caused by Francisella tularensis and can occasionally establish foodborne transmission. Methods: Patients were identified by active case detection through contact with the treating physicians and consent for publication was obtained. Clinical data were accumulated through a review of the patient charts. Serology, culture, and PCR methods were performed for confirmation of the diagnosis. Case cluster: A 46-year-old patient was hospitalised in the University Hospital Frankfurt (a tertiary care hospital) for pharyngitis and cervical lymphadenitis with abscess. A diagnosis of tularemia was made serologically, but treatment with ciprofloxacin initially failed. F. tularensis was detected in pus from the lymph node using a specific real-time PCR. The use of RD1 PCR led to the identification of the subspecies holarctica. Antibiotic therapy with high-dose ciprofloxacin and gentamicin was administered and was subsequently changed to ciprofloxacin and rifampicin. During a must-tasting, five other individuals became infected with tularemia by ingestion of contaminated must. All patients required treatment durations of more than 14 days. Conclusions: Mechanically harvested agricultural products, such as wine must, can be a source of infection, probably due to contamination with animal carcasses. The clinical course of tularemia can be complicated and prolonged and requires differentiated antibiotic treatment. Keywords: Tularemia, Zoonosis, Francisella tularensis, Francisella tularensis subspecies holarctica
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