الفهرس 
INTRODUCTIONOnly 14 pages are availabe for public view
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Abstract
Helicobacter spp. infection are of epidemiological and zoonotic importance. The
routes of transmission of Helicobacter spp infections between human and animals is
still unclear. The aim of this study was to identify Helicobacter spp. in the gastric
biopsies and stool specimens of human, as well as in saliva and stool samples in pet
animals; and faecal samples of cattle, buffaloes, sheep, and camels using
conventional bacteriological methods and conventional PCR assays. Results showed
that Helicobacter spp. could not be isolated from all human and animal samples
except only one was biopsy sample was positive for H. pylori. PCR results showed
that Helicobacter spp. were detected in (34.35%) of the samples but the total
prevalence among positive Helicobacter species samples of H. pylori ,H. bovis, H.
felis, and H. heilmannii was 4.44%, 31.11%, 0%, and 8.89% respectively. partial
sequence of 16rRNA gene was applied to 5 samples from human and animals for the
identification. Phylogenetic analysis revealed the identification of 5 species of
Helicobacter species. In conclusion, high prevalence of detection of Helicobacter
infection among human and animal samples proposed zoonotic infection and
probably saliva contamination could be the source of infections.