Milestones in order. This is history, not a weekly activity grid.
- H1N1 pandemic
- Human virus isolated
- First inactivated shots
- H2N2 shift
- H3N2 shift
- H1N1 returns
- Pandemic H1N1
- COVID-era winters
Darker cells mean a higher score for this topic on that metric.
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Quick answers
Where should I start with Influenza?
Read Identity → How they live → Body & health, then use compare rails.
Is this page advice for Influenza?
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 Influenza?
No — editorial 0–100 browsing aids inside this atlas only.
How do I compare Influenza 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.
Named pandemics mark antigenic shocks. Ordinary winters are quieter and still fill pediatric and geriatric wards.
GISRS, the WHO influenza surveillance network, turned strain choice into a global routine after mid-century.
Timeline
A severe pandemic shows how a novel package can sweep a world without modern shots.
Smith, Andrewes and Laidlaw isolate influenza A from people in London.
Military programmes begin killed-virus influenza vaccines.
Asian flu replaces H1N1 in humans — a classic reassortant pandemic.
Hong Kong flu introduces H3, still a major seasonal actor after decades of drift.
An H1N1 lineage reappears in people and co-circulates with H3N2.
A triple-reassortant H1N1 spreads globally; seasonal H1N1 is displaced.
Non-pharmaceutical measures briefly suppressed flu, then waves returned with mixed timing.
History here is public-health memory, not a recipe.
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