Seroprevalence of mosquito-born and tick-born microorganisms in human population of South Backa district [Serbia]

Hrnjaković-Cvetković, Ivana; Petrović, Tamaš; Petrić, Dušan; Cvjetković, Dejan; Kovačević, Gordana; Radovanov, Jelena; Jovanović-Galović, Aleksandra; Patić, Aleksandra; Nikolić, Nataša; Stefan-Mikić, Sandra; Milošević, Vesna

Seroprevalence of mosquito-born and tick-born microorganisms in human population of South Backa district [Serbia]

2016

Hrnjaković-Cvetković, Ivana ( Institute of Public Health of Vojvodina, Novi Sad (Serbia)) | Petrović, Tamaš (Scientific Veterinary Institute Novi Sad, Novi Sad (Serbia)) | Petrić, Dušan (Faculty of Agriculture, Novi Sad (Serbia)) | Cvjetković, Dejan (Faculty of Medicine Novi Sad (Serbia)) | Kovačević, Gordana (Institute of Public Health of Vojvodina, Novi Sad (Serbia)) | Radovanov, Jelena (Institute of Public Health of Vojvodina, Novi Sad (Serbia)) | Jovanović-Galović, Aleksandra (Institute of Public Health of Vojvodina, Novi Sad (Serbia)) | Patić, Aleksandra (Institute of Public Health of Vojvodina, Novi Sad (Serbia)) | Nikolić, Nataša (Institute of Public Health of Vojvodina, Novi Sad (Serbia)) | Stefan-Mikić, Sandra (Faculty of Medicine, Novi Sad (Serbia)) | Milošević, Vesna (Institute of Public Health of Vojvodina, Novi Sad (Serbia))

Chikungunya virus is an Arbo virus belonging to the family Togaviridae. In urban areas, antropophilic Aedes aegypti and Aedes albopictus mosquitoes are vectors for virus transmission to human population. Chikungunya virus has attracted the professional and scientifi c public attention in 2013 causing a massive outbreak on the American continent. In Europe, autochthonous transmissions of Chikungunya virus infections have been recorded in Italy in 2007 as well as in France in 2010 and 2014. Usutu virus is a RNA virus from the family Flaviviridae. Th e virus circulates in a transmission cycle between wild birds and Culex mosquitoes. Th e virus has been detected in numerous bird species across Europe. Manifestations recorded in humans include meningoencephalitis and skin rash. First human cases in Europe were recorded in immunocompromised individuals in Italy in 2009. Spirochete Borrelia burgdorferi sensu lato is transmitted to humans by ticks and causes Lyme disease, a multisystemic disease with dermatological, neurological, cardiological or articular manifestations. Ninety three persons interviewed about risk factors for vector-borne infections were examined. Th e examination was performed using commercial ELISA IgG for Chikungunya and Usutu virus and ELISA IgM and IgG test for Borrelia burgdorferi in line with manufacturer’s instructions (Euroimmun, Germany). Out of 93 examined individuals Usutu virus specifi c IgG antibodies were identifi ed in 7.5% (7/93) persons. Th e results of ELISA IgG test for Chikungunya virus were negative in the majority of tested samples, whereas 7.5% (7/93) of samples revealed borderline result. In 9.7% (9/93) participants, antibodies against Borrelia burgdorferi were detected only by ELISA IgM test. Recent infection with Borrelia burgdorferi was confi rmed in 2.15% (2/93) individuals, whereas IgG antibodies against Borrelia burgdorferi were detected in only one participant. Th e obtained results indicated that Usutu virus is active in the territory of South Bačka District contrary to Chikungunya virus as well as that Borrelia burgdorferi is an important pathogen in the investigated region.

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