Milestones in order. This is history, not a weekly activity grid.
- Bottcher spirals
- Warren's biopsies
- Culture success
- Marshall ingests
- Genus Helicobacter
- IARC Group 1
- Nobel Prize
- Korea decline
Darker cells mean a higher score for this topic on that metric.
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Quick answers
Where should I start with Helicobacter pylori?
Read Identity → How they live → Body & health, then use compare rails.
Is this page advice for Helicobacter pylori?
Public-health education — not a care plan, prescription, or outbreak briefing.
What does the local lens add?
It names everyday desks for Encounters before English norms look universal.
Are the scores a ranking of Helicobacter pylori?
No — editorial 0–100 browsing aids inside this atlas only.
How do I compare Helicobacter pylori to neighbours?
Use related cards and best-of / quiz rails after the first three chapters.
Which chapter is densest?
How they live and Body & health carry mechanisms; skim Identity first.
Spiral organisms in stomachs were sketched in the 19th century and then forgotten because they were 'un-culturable' and acid was the dogma.
Marshall's 1984 self-experiment is history. It is not a method this encyclopedia will repeat as instructions.
Timeline
Early sketches of gastric spirals are later cited as missed chances.
Robin Warren sees curved bacteria on gastric biopsies in Perth.
A forgotten holiday incubator run yields colonies — told as history, not a protocol.
A public self-experiment produces gastritis and then recovery after treatment — anecdote, not advice.
The organism is moved from Campylobacter into its own genus.
H. pylori is classed as a gastric carcinogen.
Marshall and Warren receive the physiology or medicine prize.
Seroprevalence falls as housing, plumbing and treatment access change.
The Nobel in 2005 closed a public argument that clinics had already begun to accept.
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