# Gruner’s Canon prints transmission and contact headings that later readers used against purely local miasma

Date: 1930

## The fact

Gruner 1930 and the Latin-Arabic tradition it reports include passages on communication of illness, not only on humoral imbalance in a closed body. The dated English instrument is Gruner. A transmission heading can weaken a purely local-miasma reading. It is not germ theory and not a quarantine statute.

## Context

The same Book I still organises crisis and depletion. Split those harms.

[Avicenna](/people/avicenna) is not the sole author of every later object, law, or museum label that uses the name. Shared work with courts, excavators, printers, spouses, officials, and later states does not erase a documented role, and it does not make an ancient person the signer of a twentieth-century statute.

## Evidence and sources

The named official or archival page and the independent publisher independently describe this instrument.

Official or archival record: Gruner, A Treatise on the Canon of Medicine of Avicenna (1930) — scan (https://archive.org/details/AvicennasCanonOfMedicine; Internet Archive).

## Significance

Printed transmission headings are a modest infectious-disease control path, not a microbiology lab.

Printed transmission headings are a modest infectious-disease control path, not a microbiology lab.

## What is established and what is not

Established as a dated public record of this instrument.

What would change the picture: a contradictory original with a different date or name, or a measured series that can be argued, with lag and alternatives, as a consequence of this instrument rather than of later institutions.

The date is the date of this instrument, not a licence to back-date every later harm or benefit.

## People

- Avicenna: https://factrail.ai/people/avicenna

## Drivers

- Infectious-Disease Transmission: https://factrail.ai/drivers/infectious-disease-transmission

## Sources

- https://pmc.ncbi.nlm.nih.gov/articles/PMC3558117/
- https://archive.org/details/AvicennasCanonOfMedicine

## Methodology

https://factrail.ai/methodology

Canonical: https://factrail.ai/facts/av-contagion-chapter-print