Abstract
A recent outbreak of brucellosis in an outdoor pig herd, where wild boars were identified as the most probable source of infection, prompted us to conduct a serological study on wild boars from five federal states of Germany. A total of 885 sera were examined using a combination of screening and confirmatory testing, i.e. indirect enzyme-linked immunosorbent assay (ELISA) followed by complement fixation and slow agglutination tests. Seroprevalences of Brucella suis antibodies in the various regions were between 0 and 28.5% in the ELISA. After confirmatory testing, the amount of positive sera was lower and reached only up to 12.1%, dependent on the method. Although wild boars usually harbour B. suis biovar 2, which is less virulent for humans, a zoonotic risk for persons dealing with these animals and their carcasses cannot be ruled out.
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