الفهرس 
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Abstract
This study include 87 diseased calves suffering - from
gastrointestinal disturbances (vomition, diarrhoea and colic), ten (10)
apparently healthy calves, 53 diseased persons (from attendance of the
farm) previously diagnosed as hepatitis persons and having
gastrointestinal disturbances and (10) ten normal persons. Isolation
and identification of H. pylori were done to detect the prevalence of
the infection in human and calves.
The results showed that the incidence in calves reached 9.19% by
the cultural method.
The incidence in diseased patients reached 50.9% by biopsy
urease test and 41.5% by the cultural method.
While the incidence in the apparently healthy reached 30% by
biopsy urease test and 40% by cultural methods.
The use of ELISA (indirect method) on the serum samples of
diseased calves revealed that 17 samples were positive and harbouring
the specific Helicobacter pylori antibodies with a percentage of
(19.54%) and 30% in the apparently healthy calves.
On the other hand, the results of ELISA in the sera of diseased
patients revealed that 36 samples were positive for the presence of H.
pylori antibodies with a percentage of (67.9%) and 40% in apparently
healthy attendance.