Saccharomyces boulardii in addition to antofloxacin-based bismuth quadruple therapy for Helicobacter pylori eradication

Hpylori is a gram-negative bacterium colonized in gastric mucosa. Currently, the infection rate of H. pylori in China is about 50%, which is not only closely related to a variety of digestive system diseases, but also induces a series of immune responses to other systems.