Clinical, epidemiological and epizootic features of a Q fever outbreak in the border region between Serbia and Montenegro

Introduction: Q fever is a zoonosis which commonly manifests as an acute febrile disease accompanied by pneumonia or hepatitis. The aim of this study was to reveal the reservoirs, sources and routes of infection relevant for the Q fever outbreak that occurred in the border region between Serbia and...

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Main Authors: Zoran Debeljak, Snezana Medić, Marija Baralić, Aleksandra Andrić, Aleksandar Tomić, Dejan Vidanović, Milanko Šekler, Kazimir Matović, Nikola Vasković
Format: Article
Language:English
Published: The Journal of Infection in Developing Countries 2018-05-01
Series:Journal of Infection in Developing Countries
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Online Access:https://jidc.org/index.php/journal/article/view/9918
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author Zoran Debeljak
Snezana Medić
Marija Baralić
Aleksandra Andrić
Aleksandar Tomić
Dejan Vidanović
Milanko Šekler
Kazimir Matović
Nikola Vasković
author_facet Zoran Debeljak
Snezana Medić
Marija Baralić
Aleksandra Andrić
Aleksandar Tomić
Dejan Vidanović
Milanko Šekler
Kazimir Matović
Nikola Vasković
author_sort Zoran Debeljak
collection DOAJ
description Introduction: Q fever is a zoonosis which commonly manifests as an acute febrile disease accompanied by pneumonia or hepatitis. The aim of this study was to reveal the reservoirs, sources and routes of infection relevant for the Q fever outbreak that occurred in the border region between Serbia and Montenegro. Methodology: A prospective study was conducted from 3rd to 23rd March, 2016 in Brodarevo, village near the Serbian-Montenegro border. The EU case definition for Q fever was applied and serological evidence of IgM and/or IgG antibody for phase II antigen Coxiella burnetii used for laboratory confirmation. Animal infection was proven by detection of specific biomarkers for Q fever by ELISA and Real-Time PCR. Results: In total, ten patients were registered with Q fever, giving an attack rate of 0.5% in the village. A severe form of disease with atypical pneumonia ended up with hospitalization of eight patients. Serological surveillance was conducted in 30 herds of the receptive animals in the outbreak area. Overall the anti-Coxiella antibody seroprevalence was 20.6%. Positive molecular findings (68.4%) accompanied with high seroprevalence (63.2%) were identified in a mini-farm of sheep and cattle in the nearby Orasac, these were considered to be active sources of infection. The most probable route of C. burnetii transmission was the inhalation of contaminated aerosols originating from infected animals. Conclusion: The main reservoirs for human Q fever at the border region between Serbia and Montenegro are infected cattle and ruminants. Adoption of a comprehensive strategy for disease prevention and control at the intergovernmental level is urgent.
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spelling doaj-art-c309664bc8104e64a40b097e2b64c1dc2025-08-20T02:57:18ZengThe Journal of Infection in Developing CountriesJournal of Infection in Developing Countries1972-26802018-05-01120510.3855/jidc.9918Clinical, epidemiological and epizootic features of a Q fever outbreak in the border region between Serbia and MontenegroZoran Debeljak0Snezana Medić1Marija Baralić2Aleksandra Andrić3Aleksandar Tomić4Dejan Vidanović5Milanko Šekler6Kazimir Matović7Nikola Vasković8Veterinary Specialized Institute “Kraljevo”, Kraljevo, SerbiaCenter for disease control and prevention, Novi Sad, Autonomous Province of Vojvodina, SerbiaCenter for disease control and prevention, Uzice, SerbiaCenter for disease control and prevention, Uzice, SerbiaVeterinary Specialized Institute “Kraljevo”, Kraljevo, SerbiaVeterinary Specialized Institute “Kraljevo”, Kraljevo, SerbiaVeterinary Specialized Institute “Kraljevo”, Kraljevo, SerbiaVeterinary Specialized Institute “Kraljevo”, Kraljevo, SerbiaVeterinary Specialized Institute “Kraljevo”, Kraljevo, Serbia Introduction: Q fever is a zoonosis which commonly manifests as an acute febrile disease accompanied by pneumonia or hepatitis. The aim of this study was to reveal the reservoirs, sources and routes of infection relevant for the Q fever outbreak that occurred in the border region between Serbia and Montenegro. Methodology: A prospective study was conducted from 3rd to 23rd March, 2016 in Brodarevo, village near the Serbian-Montenegro border. The EU case definition for Q fever was applied and serological evidence of IgM and/or IgG antibody for phase II antigen Coxiella burnetii used for laboratory confirmation. Animal infection was proven by detection of specific biomarkers for Q fever by ELISA and Real-Time PCR. Results: In total, ten patients were registered with Q fever, giving an attack rate of 0.5% in the village. A severe form of disease with atypical pneumonia ended up with hospitalization of eight patients. Serological surveillance was conducted in 30 herds of the receptive animals in the outbreak area. Overall the anti-Coxiella antibody seroprevalence was 20.6%. Positive molecular findings (68.4%) accompanied with high seroprevalence (63.2%) were identified in a mini-farm of sheep and cattle in the nearby Orasac, these were considered to be active sources of infection. The most probable route of C. burnetii transmission was the inhalation of contaminated aerosols originating from infected animals. Conclusion: The main reservoirs for human Q fever at the border region between Serbia and Montenegro are infected cattle and ruminants. Adoption of a comprehensive strategy for disease prevention and control at the intergovernmental level is urgent. https://jidc.org/index.php/journal/article/view/9918Q feverCoxiella burnetiioutbreak investigationserosurveylivestock
spellingShingle Zoran Debeljak
Snezana Medić
Marija Baralić
Aleksandra Andrić
Aleksandar Tomić
Dejan Vidanović
Milanko Šekler
Kazimir Matović
Nikola Vasković
Clinical, epidemiological and epizootic features of a Q fever outbreak in the border region between Serbia and Montenegro
Journal of Infection in Developing Countries
Q fever
Coxiella burnetii
outbreak investigation
serosurvey
livestock
title Clinical, epidemiological and epizootic features of a Q fever outbreak in the border region between Serbia and Montenegro
title_full Clinical, epidemiological and epizootic features of a Q fever outbreak in the border region between Serbia and Montenegro
title_fullStr Clinical, epidemiological and epizootic features of a Q fever outbreak in the border region between Serbia and Montenegro
title_full_unstemmed Clinical, epidemiological and epizootic features of a Q fever outbreak in the border region between Serbia and Montenegro
title_short Clinical, epidemiological and epizootic features of a Q fever outbreak in the border region between Serbia and Montenegro
title_sort clinical epidemiological and epizootic features of a q fever outbreak in the border region between serbia and montenegro
topic Q fever
Coxiella burnetii
outbreak investigation
serosurvey
livestock
url https://jidc.org/index.php/journal/article/view/9918
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