title: Cryptosporidium suis and Cryptosporidium scrofarum in Eurasian wild boars (Sus scrofa) in Central Europe.
abstract: From 2011 to 2012, to identify Cryptosporidium spp. occurrence in Eurasian wild boars (Sus scrofa) 29 randomly selected localities (both forest areas and enclosures) across the Central European countries of Austria, the Czech Republic, Poland, and the Slovak Republic were investigated. Cryptosporidium oocysts were microscopicaly detected in 11 out of 460 faecal samples examined using aniline-carbol-methyl violet staining. Sixty-one Cryptosporidium infections, including the 11 infections that were detected by microscopy, were detected using genus- or species-specific nested PCR amplification of SSU rDNA. This represents a 5.5 fold greater sensitivity for PCR relative to microscopy. Combining genus- and species-specific PCR tools significantly changes the perspective on the occurrence of Cryptosporidium spp. in wild boars. While RFLP and direct sequencing of genus specific PCR-amplified products revealed 56 C. suis (20) and C. scrofarum (36) monoinfections and only 5 mixed infections of these species, species-specific molecular tools showed 44 monoinfections and 17 mixed infections with these species. PCR analysis of the gp60 gene did not reveal any other Cryptosporidium infections. Similar to domestic pigs, C. scrofarum was detected as a dominant species infecting adult Eurasian wild boars (Sus scrofa). Cryptosporidium infected wild boars did not show signs of clinical disease. This report is perhaps the most comprehensive survey of cryptosporidial infection in wild boars.
authors.affiliation: Faculty of Agriculture, University of South Bohemia in České Budějovice, Studentská 13, 370 05 České Budějovice, Czech Republic.
authors.forename: Karel
authors.initials: K
authors.lastname: Němejc
authors.forename: Bohumil
authors.initials: B
authors.lastname: Sak
authors.forename: Dana
authors.initials: D
authors.lastname: Květoňová
authors.forename: Vladimír
authors.initials: V
authors.lastname: Hanzal
authors.forename: Paweł
authors.initials: P
authors.lastname: Janiszewski
authors.forename: Pavel
authors.initials: P
authors.lastname: Forejtek
authors.forename: Dušan
authors.initials: D
authors.lastname: Rajský
authors.forename: Petra
authors.initials: P
authors.lastname: Ravaszová
authors.forename: John
authors.initials: J
authors.lastname: McEvoy
authors.forename: Martin
authors.initials: M
authors.lastname: Kváč
mesh_terms: D000818:Animals; D003457:Cryptosporidiosis / Q000453:epidemiology / Q000662:veterinary*; D003458:Cryptosporidium / Q000145:classification*; D005060:Europe / Q000453:epidemiology; D005243:Feces / Q000469:parasitology; D013045:Species Specificity; D034421:Sus scrofa / Q000469:parasitology*; D013552:Swine; D013553:Swine Diseases / Q000453:epidemiology / Q000469:parasitology*
keywords: Central Europe; Cryptosporidium scrofarum; Cryptosporidium suis; Eurasian wild boar; PCR; SSU
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