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Background: Oral vaccines have been associated with diminished immunogenicity and efficacy in developing country populations. Rotavirus, cholera and oral polio vaccines have shown much lower protection in Africa and Asia than in developed countries. In view of this, there is an urgent need to...

Introduction There is a shortage of systematically collected data on gastric cancer in Zambia. An audit carried out as preliminary work showed that there was a change in the epidemiology of gastric cancer since the early 1980s, and it was hypothesised that this change was linked to HIV infection....