… Serology to detect antibodies to Helicobacter pylori is not frequently used as a diagnostic
tool in developing countries. When compared to a commercial ELISA, an ELISA constructed …

… studies from developed countries [6, 7, 25] and suggests age-related acquisition or
expression ofH. pylori infection. We note that 40% of our cord-blood samples were positive for H. …

… infection in Nossa Senhora do Livramento, a rural area from Brazil, is very high and similar
to that observed in other developing countries. Furthermore, the increase in the prevalence of …

… to antimicrobial treatment and followed up for a period of 18 months in a developing country
with an increased prevalence rate of H. pylori infection in the population (unpublished data). …

… have been observed in the USA and in developed countries in Europe and Asia, while the
… % or more have already been reported in developed countries in Europe and Asia. Primary …

… There are several reports in Eastern countries describing the failure of H pylori eradication
… In summary, H pylori infection in Eastern countries is very common and is accompanied by …

… developing countries (50%–80%), for example Mexico (76.3%).110 The prevalence of
metronidazole resistance tends to be lower in Japan (9–12%).94 The prevalence in Canada was …

… pylori in the developing countries has declined owing to the increased awareness of the
possible root of the problem and recommends boiling water to prevent infection [64]. Nowadays, …

… three or more per 100 persons in developing countries. Risk factors for acquiring H. pylori
infection include residence in a developing country, poor socioeconomic conditions, family …

… pylori; its presence among asymptomatic family members may facilitate the transmission …
after eradication therapy for H. pylori is extremely low in developed countries such as Europe …