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Pasteur’s public Pouilly-le-Fort report leaves the bichromate attenuation actually used off-stage

In June 1881 Louis Pasteur reported the Pouilly-le-Fort anthrax trial to the Académie as a success of vaccination by attenuated anthrax. In the causal graph this event strengthens Institutional Corruption, a driver that strengthens Political corruption index — a worsening welfare path.

Read the full account

In June 1881 Louis Pasteur reported the Pouilly-le-Fort anthrax trial to the Académie as a success of vaccination by attenuated anthrax. Later inspection of laboratory notebooks, especially as published in Gerald Geison’s study, indicates that the farm animals received a potassium-bichromate vaccine closer to Toussaint’s chemical path than the oxygen-attenuation story told in public. No French court entered a fraud judgment. The row stays contested laboratory secrecy, not a verdict of crime.

Context

Priority fights with Toussaint and the need to stage a press-visible miracle rewarded a clean story. Roux and Chamberland’s notebooks are part of the file. Sharing the bench does not erase Pasteur’s public voice. Geison (1995) is a historian, not a contemporary prosecutor.

Confidence is stated on the impact path, not hidden in adjectives. Mixed effects of Pasteur’s public Pouilly-le-Fort report leaves the bichromate attenuation actually used off-stage are separate paths.

Why it matters

Institutional-corruption path as secrecy and public-method mismatch, medium confidence, not a criminal count. The welfare sign is worsening on transparency, while the same week’s survival contrast remains an improving infect path on another row.

That reading is an impact-path choice, not a property stored on the Fact itself.

Who was responsible

Contribution type and responsibility level for each recorded actor — not sole-author shorthand.

  • Louis Pasteur

    Person

    Direct responsibility

    responsibility level 0.32 · verified

    He signed the public story of oxygen attenuation. Notebooks and later historians describe potassium-bichromate preparation. Contested, not a criminal judgment.

What changed

Fact → Driver → Indicator. Relationship strength orders the paths; it is not the observed indicator movement.

Evidence

The sources behind this fact and its verification state.

Verified2 sources on file
  1. 1.Gerald L. Geison — The Private Science of Louis PasteurPrinceton University Press · High credibility · verified
  2. 2.Institut Pasteur — HistoryInstitut Pasteur · High credibility · verified
What the sources establish

Institut Pasteur history at https://www.pasteur.fr/en/institut-pasteur/history (opens in a new tab) still presents Pouilly-le-Fort as a public vaccine success, the official career story. Princeton’s page for Geison, The Private Science of Louis Pasteur, at https://press.princeton.edu/books/paperback/9780691015521/the-private-science-of-louis-pasteur (opens in a new tab) is the independent carrier of the notebook critique. The URLs differ. No number of ‘fraudulent sheep’ is supplied here.

Established: Pasteur’s public June 1881 account and a later scholarly claim of a different laboratory preparation both exist. Not established: a judicial finding of fraud, or that the animals did not show the public survival contrast. Geison — The Private Science of Louis Pasteur” at https://press.princeton.edu/books/paperback/9780691015521/the-private-science-of-louis-pasteur (opens in a new tab). Contribution is recorded as He signed the public story of oxygen attenuation. Notebooks and later historians describe potassium-bichromate preparation. Contested, not a criminal judgment. The dated heading stays Pasteur’s public Pouilly-le-Fort report leaves the bichromate attenuation actually used off-stage on 1881-06-13, not a later statue, UNESCO listing, or school film.

Shared responsibility is part of Pasteur’s public Pouilly-le-Fort report leaves the bichromate attenuation actually used off-stage. Naming Louis Pasteur does not delete co-authors, institutions, or later transmitters. The lag from 1881-06-13 to any measured indicator is not treated as zero. Alternative explanations — weather, other armies, later statutes, or independent cultural change — remain live where the sources do not close them.

If a number is not in the two records named above, it is not supplied here.

Later competitions, monuments, translations, UNESCO listings, museums, and adaptations are not converted into extra lifetime acts.

Causal path

How this event connects to drivers and indicators in the graph.

  1. ActorLouis Pasteur
  2. contributed toFactPasteur’s public Pouilly-le-Fort report leaves the bichromate attenuation actually used off-stage
  3. strengthensDriverInstitutional Corruption
  4. strengthensIndicatorPolitical corruption index

Cite this page

Factrail. (2026). Pasteur’s public Pouilly-le-Fort report leaves the bichromate attenuation actually used off-stage. Factrail. https://factrail.ai/facts/pasteur-pouilly-method-1881

https://factrail.ai/facts/pasteur-pouilly-method-1881

Accessed 16 October 2026.

By the Factrail desk · Method: how we source and score · Last reviewed

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