In 1900, gastric cancer was the leading cause of cancer death in the United States and in many countries (1). This cancer, nearly all of which is attributable to decades-long gastric colonization by Helicobacter pylori (2), has been declining with the progressive disappearance of these bacteria (3). This has been very good news, indeed a triumph (1), and the trends began long before H. pylori was discovered in 1983, with cohorts born in the late 19th century (1).
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