title: Camel as a transboundary vector for emerging exotic Salmonella serovars.
abstract: The current study was conducted to shed light on the role of imported camels as a transboundary vector for emerging exotic Salmonella serovars. Fecal samples were collected from 206 camels directly after slaughtering including 25 local camels and 181 imported ones as well as stool specimens were obtained from 50 slaughterhouse workers at the same abattoir. The obtained samples were cultured while Salmonella serovars were identified through Gram's stain films, biochemical tests and serotyping with antisera kit. Moreover, the obtained Salmonella serovars were examined by PCR for the presence of invA and stn genes. The overall prevalence of Salmonella serovars among the examined camels was 8.3%. Stn gene was detected in the vast majority of exotic strains (11/14) 78.6% including emerging serovars such as Salmonella Saintpaul, S. Chester, S. Typhimurium whereas only one isolate from local camels carried stn gene (1/3) 33.3%. On the other hand, none of the examined humans yielded positive result. Our findings highlight the potential role of imported camels as a transboundary vector for exotic emerging Salomenella serovars.
authors.affiliation: a Faculty of Veterinary Medicine, Department of Zoonoses , Cairo University , Cairo , Egypt.
authors.forename: Nahed H
authors.initials: NH
authors.lastname: Ghoneim
authors.affiliation: a Faculty of Veterinary Medicine, Department of Zoonoses , Cairo University , Cairo , Egypt.
authors.forename: Khaled A
authors.initials: KA
authors.lastname: Abdel-Moein
authors.affiliation: a Faculty of Veterinary Medicine, Department of Zoonoses , Cairo University , Cairo , Egypt.
authors.forename: Hala
authors.initials: H
authors.lastname: Zaher
mesh_terms: D000818:Animals; D001426:Bacterial Proteins / Q000235:genetics; D002162:Camelus / Q000382:microbiology*; D000076263:Communicable Diseases, Imported / Q000453:epidemiology / Q000382:microbiology / Q000635:transmission*; D004199:Disease Vectors; D004534:Egypt / Q000453:epidemiology; D004768:Enterotoxins / Q000235:genetics; D005243:Feces / Q000382:microbiology; D006801:Humans; D010802:Phylogeny; D016133:Polymerase Chain Reaction; D012475:Salmonella / Q000235:genetics / Q000276:immunology* / Q000302:isolation & purification; D012480:Salmonella Infections / Q000453:epidemiology / Q000382:microbiology / Q000635:transmission*; D017422:Sequence Analysis, DNA; D065288:Serogroup; D012703:Serotyping
chemical_list: D001426:Bacterial Proteins; D004768:Enterotoxins; C082864:enterotoxin, Salmonella; C075518:invA protein, Bacteria
keywords: Camels; exotic Salmonella serovars; vector