Factors associated with maintenance of human Q fever in Vojvodina, Serbia

Mioljub Ristić; Mirjana Štrbac; Sara Savić; Gorana Dragovac; Svetlana Ilić; Snežana Medić; Branka Vidić; Vladimir Petrović

doi:10.2298/VSP161217034R

Mioljub Ristić Institute of Public Health of Vojvodina, Novi Sad, Serbia
Mirjana Štrbac Institute of Public Health of Vojvodina, Novi Sad, Serbia
Sara Savić University of Novi Sad, Scientific Veterinary Institute, Novi Sad, Serbia
Gorana Dragovac Institute of Public Health of Vojvodina, Novi Sad, Serbia
Svetlana Ilić Institute of Public Health of Vojvodina, Novi Sad, Serbia
Snežana Medić Institute of Public Health of Vojvodina, Novi Sad, Serbia
Branka Vidić University of Novi Sad, Scientific Veterinary Institute, Novi Sad, Serbia
Vladimir Petrović Institute of Public Health of Vojvodina, Novi Sad, Serbia

DOI: https://doi.org/10.2298/VSP161217034R

Keywords: q fever;, zoonoses;, disease outbreaks;, risk factors;, serbia.

Abstract

Background/Aim. Q fever occurs worldwide and can be found in humans as well as in domestic mammals. The aim of this study was to describe the epidemiological characteristics of Q fever and evaluate correlation between the Q fever occurrence and weather conditions. Methods. We conducted a descriptive epidemiological study using data of the Institute of Public Health of Vojvodina, Scientific Veterinary Institute, Novi Sad, and the Republic Hydrometeorological Service of Serbia, from 2006 to 2015. Results. Out of 272 human Q fever cases, 114 (41.9%) patients were aged between 20 and 39 years. Between January and May, a total of 193 (71.0%) cases of disease were registered. In the Central Banat and South Banat, a strong positive correlation between an increase in Q fever detection and an increase of average wind speed (ρ= 0.69719 and ρ=0.62303, respectively) was observed, while a strong negative correlation was determined between the average rainfall with the number of Q fever cases in the Central Banat, the South Banat and Srem district (ρ = -0.78033, ρ = -0.70675 and ρ = -0.70431, respectively). During a 10-year period, a strong positive correlation was found between the human Q fever cases compared to the number of cattle and sheep Q cases in the Srem district (r = 0.7989 and r = 0.7966, respectively). Direct contact with domestic animals was the most frequent route of Q fever transmission in Vojvodina. Conclusion. The timely sharing of information between the animal and human health sectors as well as between neighbouring countries is crucial for an appropriate and an early outbreak response, especially during windy and dry months of the year. Additionally, it is essential that people who are exposed to a risk of infection must be permanently educated about reducing the risk of transmission of infection.

Author Biography

Mioljub Ristić, Institute of Public Health of Vojvodina, Novi Sad, Serbia

odsek za zarazne bolesti, asistent

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