Helicobacter pylori (H. pylori) is one of the most prevalent pathogens in humans, contributing significantly to gastroduodenal diseases. Despite being widely researched, there are still gaps in the understanding of this pathology. The general objective of this study is to analyze the existing literature on the clinical manifestation of H. pylori infection in humans and its epidemiological correlations. The specific objective is to update academics and health professionals on the epidemiology and clinical manifestations of H. pylori infection in humans. To carry out this bibliographic review, consensus statements on H. pylori, guidelines and scientific articles available in the PubMed and SciELO databases were consulted. The inclusion criteria adopted were: publications from 2016 to 2024, free access to the full text, clinical trials, systematic reviews, controlled and randomized tests, and writing in Portuguese, English and/or Spanish. The selected articles contribute relevant concepts to outline ideas related to the topic of this study. Works that were not aligned with the objectives of this study were excluded, and those that were not fully available free of charge, only abstracts and those with inadequate methodology or low scientific quality. It was found that additional studies on H. pylori are essential to fully elucidate the pathogenesis of this infection, however, there is evidence that the process is influenced by genetic and environmental factors, which also require further research. Furthermore, it is essential to raise awareness among legislators when planning public health policies and, thus, improve patients' quality of life.
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