Distribution and transmission tendency of trichinellosis in wild boars (Sus scrofa) at the territory of Serbia

Trichinellosis (trichinellosis) is a disease common for both people and animals, which was mentioned in even some several centuries old notes. As well as domestic pigs, wild boars, being omnivores and the animals that broadly cover the territory of Serbia, could definitely be considered as one of possible trichinellosis indicators, and that is the main reason for starting this investigation with the objective to perceive the level of infection of wild boars in different hunting areas at the territory of the Republic of Serbia. In this work it is presented the distibution of T. spiralis in wild boars at the territory of Serbia in the period from 2006. to 2010. Besides the distribution of trichinellosis in wild boars, we have also calculated the tendency of changing in the number of infected wild boars at the territories of different hunting associations, in the period from 2006. to 2010. The distribution of T. spiralis in shot wild boars showed that trichinellosis appeared at the total of 24 hunting associations territories during the investigated period. Only at the territories of Pirot and Dimitrivgrad hunting associations, there was diagnosed at least one case of trichinellosis in shot wild boars in all five years. Out of the total of shot and inspected wild boars (20.250) in 123 of them, there was diagnosed the presence of T. spiralis infectious forms (0,61%). The greatest number (29) of the infected wild boars was shot in 2007. By analysing the change in number of positive wild boars in the interval from 2006. to 2010. it was found out that there is a constant tendency of growth, namely 1,1 head of boar per year. Change in number of trichinellosis wild boars by years of observation is a second degree polynomial (Y=-0,6+17,81xi-2,79xi2) with correlation coefficient of 0,69. On the basis of the obtained analysis, that were carried out, it can be concluded that the occurence of trichinellosis is most frequent in border areas towards Bulgaria, Romania, Hungary, Croatia and Bosnia and Hercegovina. [Projekat Ministarstva nauke Republike Srbije, br. TR 31034: Odabrane biološke opasnosti za bezbednost/kvalitet hrane animalnog porekla i kontrolne mere od farme do potrošača]