Trichinella infections in different host species of an endemic district of Serbia.

Trichinella infections are endemic in the Balkan region of Europe. Though trichinellosis and agents thereof are serious problems for human health and animal husbandry, only a limited number of Trichinella isolates from Serbia have been identified at the species level so far. The aim of the present study was the surveillance and monitoring of Trichinella in domestic pigs and wild animals from the endemic district of Branicevo. Investigations performed during the 2009-2010 period revealed Trichinella infections in 344 out of 282,960 (0.12%) domestic pigs. Among wildlife, Trichinella infections were detected in 11 out of 94 (11.7%) wild boars (Sus scrofa), 7 out of 57 (12.3%) red foxes (Vulpes vulpes), 7 out of 13 (53.8%) golden jackals (Canis aureus), and in all three examined wolves (Canis lupus). Trichinella spiralis and Trichinella britovi were the only two species identified. T. britovi was identified in 31% of isolates from wildlife of the Branicevo district and T. spiralis was found in 53% of wild animals; mixed infections were observed in 16% of the animals examined. Findings form the basis of an information campaign for veterinary services, pig owners and the hunter's associations about the risk of the transmission of these zoonotic agents. The application of control programs as established at the Veterinary Specialist Institute of Pozarevac resulted in a decline in Trichinella infections among domestic pigs and the absence of human trichinellosis in the last three years in the Branicevo district.

Application of GIS in epizootiological surveillance of swine trichinellosis in one endemic district in Serbia.

Application of new tools for epizootiological investigations in veterinary medicine, such as Geographical Information Systems (GIS), offers a new approach and possibilities for the eradication or control of infectious diseases. GIS is particularly useful for research conducted in small areas strongly impacted by man. Trichinellosis is a world-wide zoonosis, which is endemic in some European countries, Balkan district and Serbia in particular. There are very few data on GIS application in the field of trichinellosis. We here present the application of GIS for mapping Trichinella spp. occurrence and spatial and temporal patterns of Trichinello infection in one endemic district in Serbia. Settlements with trichinellosis were marked and particular points of interest were designated. Data on prevalence of Trichinella infection in domestic swine accompanied by location of foci indicated the existence of disease geographical stationarity. This first report on GIS application in Serbia will facilitate trichinellosis surveillance and monitoring of Trichinella spp. circulation among domestic pigs, and populations of synanthropic and sylvatic animals.

Trichinella prevalence in swine in an endemic district in Serbia: epidemiology and control.

Endemic trichinellosis is re-emerging in Serbia and it is a serious problem both from the perspective of human health and animal husbandry. The widespread appearance of human trichinellosis is attributed to a high prevalence of Trichinella infection in domestic animals, especially swine. Epidemiological data presented in this paper were collected during a 12-year period (1995-2006) at small private swine farms in the region of Branicevo, Serbia, where a high Trichinella prevalence in slaughter pigs (0.57%) has been detected. To further monitor Trichinella prevalence in swine, a serological survey, using ELISA, was performed in 2006. Of 916 swine tested by ELISA, Trichinella specific antibodies were detected in 15 (1.64%), while suspect results were obtained in 10 (1.09%). Positive or suspect animals originated from all parishes except one (Pozarevac). Our results point to the need for systematic monitoring in pigs to achieve a better control of trichinellosis in Serbia.