- Giants
- Our World in Data
- Vaccine impact on diseases
Vaccine impact on diseases
Our World in Data's small multiples drew 88.8K views on X: 1.5x its typical post and #25 of 139 Our World in Data charts we track by views. Read Oct 10, 2026.
My chart on the history of three infectious diseases, smallpox, polio, and measles, before and after a vaccine was available.
Why it spread
This chart post spread because it came from an independent author and landed on a hot topic that week, drawing 745 likes, 273 reposts, 23 quotes, 142 saves, and 88,816 views.
What worked
- The post uses a small multiples chart to show how vaccines dramatically reduce disease deaths and cases across smallpox, polio, and measles.
- The chart has high self labelling and a visible source line, which makes it easy to trust and share.
- The post is branded and comes from柴 a top quarter source reach, helping it travel beyond the author's usual audience.
What to borrow
We could use the same small multiples form and the before and after vaccine framing with our own data, keeping high self labelling and a clear source line.
Careful
Do not copy the exact topic or assume the same numbers will apply to our charts, and do not over-read the quote rate or source reach as a guarantee of spread.
Written by our analysis model from the measured numbers above, not by Our World in Data.
Make it yours
We have not read this chart's numbers yet
Its own maker appears here once its numbers are read. Until then, these are other real charts in a similar format: each data page starts from that chart's numbers and takes yours.
API · Max
Use this chart via API
On the Max plan you can pull this chart's numbers with the provenance of each one, as JSON or CSV, with its redraw spec, or call it from an agent over MCP. Chart id cb7bfb74419d.
| Path | Returns | Plan | |
|---|---|---|---|
| GET | /api/v1/charts/cb7bfb74419d | Title, publisher, date, form, point count; with a Max key, the data link | Open |
| GET | /api/v1/charts/cb7bfb74419d/data | Every point with its provenance and confidence, plus the redraw spec. Add ?format=csv for CSV | Max |
| GET | /api/v1/charts/cb7bfb74419d/render?view=1 | The draw-only view this page uses | Open |
| POST | /mcp | Tool get_chart_data with this id, for Claude, Cursor and other agents | Max |
curl -s https://viral-chart.com/api/v1/charts/cb7bfb74419d/data \
-H "Authorization: Bearer $VIRALCHART_KEY"claude mcp add --transport http viralchart https://viral-chart.com/mcp \
--header "Authorization: Bearer $VIRALCHART_KEY"60 requests a minute per key; over that you get 429 with Retry-After. Up to 5 keys per account, made on your account page and shown once. Without Max, the data route answers 402 with a link to the plans. The numbers describe a chart its publisher owns, and every file carries a license note.
More from Our World in Data
All 139
Other giants using a small multiples
All 49
Questions people ask
How far did Our World in Data's "Vaccine impact on diseases" chart travel?
88,816 views, 745 likes, 273 reposts and 142 saves on X, read Oct 10, 2026. A normal post from @MaxCRoser gets about 59K views.
What kind of chart is it?
A small multiples. Vaccines dramatically reduce disease deaths and cases.
Can I use Our World in Data's chart?
Use the format, not the picture. The chart, logo and design belong to Our World in Data. ViralChart redraws the chart type with your numbers and words, and credits the original publisher.