n South African Medical Journal - : prevalence and antibiotic susceptibility among Kenyans : original article




. infection in Kenya is staggeringly high. Evidence links infection of the gastric mucosa by with subsequent development of gastric pathologies.

. We investigated the prevalence of in dyspeptic patients, its relationship with gastric pathologies, and associated antibiotic susceptibility profiles, and compared two media to find the appropriate medium that enhances growth and expedites culture and isolation.
. Rapid urease and histological tests were used to screen for . Culture was performed to test sensitivity and evaluate media. Selective and nutritional supplements were added to culture media (Colombia blood agar and brain-heart infusion agar) for growth enhancement. E-test strips for metronidazole, amoxicillin and clarithromycin were used for susceptibility testing.
. The prevalence of infection in children was 73.3%, and 54.8% in adults. All the investigated in this study were largely sensitive to clarithromycin (100%, minimum inhibiting concentration (MIC) <2 μg/ml), amoxicillin (100%, MIC <2 μg/ml) and metronidazole (95.4%, MIC <8 μg/ml). There was, however, occasional resistance to metronidazole (4.6%, MIC >8 μg/ml). Both Colombia blood and brain-heart infusion agar, with the supplements, effectively supported growth. Growth was achieved in an average of 36 hours for primary isolations and 24 hours for subcultures.
. The media described here reduce the time required to culture and isolate bacteria and perform susceptibility testing. Despite the high prevalence of infection, the associated pathology is low and does not parallel prevalence in the population.


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