Helicobacter pylori can be transmitted through saliva
the verdict
SUPPORTED
the evidence backs this
confidence 86/100
Multiple studies demonstrate that Helicobacter pylori can be detected in human saliva and that the oral cavity can serve as a reservoir for the bacterium, supporting the possibility of salivary transmission.
Evidence for · 8
Detection of <i>Helicobacter pylori</i> DNA in Feces and Saliva by Polymerase Chain Reaction: a Review
2004 · cited by 64
Helicobacter pylori DNA and virulence factors are frequently detectable in human saliva using PCR.
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More for · 7
Detection of oral Helicobacter Pylori infection using saliva test cassette
2015 · cited by 13
Detection of H. pylori using saliva test cassettes indicates oral presence and potential oral-oral transmission routes.
Co-culture of Helicobacter pylori with oral microorganisms in human saliva
2025 · cited by 11
Studies demonstrate that H. pylori can transiently survive in human saliva, particularly in co-culture with certain oral microorganisms.
Occupational risk of gastrointestinal Helicobacter pylori infection among medical and dental staff: a systematic review.
2026 · cited by 0
Systematic reviews note that saliva acts as a major reservoir for H. pylori, enabling potential oral-oral transmission among healthcare workers and patients.
Molecular detection of Helicobacter pylori in saliva of Sri Lankan adults with periodontitis, gastritis or both conditions.
2026 · cited by 0
Salivary PCR successfully detects H. pylori DNA, highlighting the oral cavity as an extragastric niche.
Assessment of Salivary Polymerase Chain Reaction as a Non-invasive Method for Detecting Helicobacter pylori Infection in Patients With Symptomatic Gastritis.
2026 · cited by 0
Salivary PCR demonstrates high sensitivity and diagnostic accuracy for identifying H. pylori infection non-invasively.
Observational Study of the Association Between Oral <i>Helicobacter pylori</i>, Fixed Orthodontic Appliances, and Gastric Cancer Risk.
2026 · cited by 0
Detection of H. pylori DNA in oral samples is significantly associated with gastric disease status, supporting an oral-gastric axis.
Detection of Salivary Helicobacter pylori in Pediatric Patients and Its Association With Gastrointestinal and Oral Health.
2026 · cited by 0
H. pylori can be reliably detected in the saliva of pediatric patients, indicating saliva serves as a reservoir.