---
title: Antibiotic Resistance Tests
author: Dr Graham Beards
source: https://www.worldhistory.org/image/19119/antibiotic-resistance-tests/
format: machine-readable-alternate
license: Creative Commons Attribution-ShareAlike (https://creativecommons.org/licenses/by-sa/4.0)
updated: 2024-06-19
---

# Antibiotic Resistance Tests

_Authored by Dr Graham Beards_

## Image File

[![Antibiotic Resistance Tests](https://www.worldhistory.org/uploads/images/19119.jpg)](https://www.worldhistory.org/uploads/images/19119.jpg)

## Image Caption

Antibiotic resistance tests: Bacteria are streaked on dishes with white disks, each impregnated with a different antibiotic. Clear rings, such as those on the left, show that bacteria have not grown, indicating that these bacteria are not resistant. The bacteria on the right are fully resistant to three of seven and partially resistant to two of seven antibiotics tested.

## Cite This Work

### APA
Beards, D. G. (2024, June 19). Antibiotic Resistance Tests. *World History Encyclopedia*. <https://www.worldhistory.org/image/19119/antibiotic-resistance-tests/>
### Chicago
Beards, Dr Graham. "Antibiotic Resistance Tests." *World History Encyclopedia*, June 19, 2024. <https://www.worldhistory.org/image/19119/antibiotic-resistance-tests/>.
### MLA
Beards, Dr Graham. "Antibiotic Resistance Tests." *World History Encyclopedia*, 19 Jun 2024, <https://www.worldhistory.org/image/19119/antibiotic-resistance-tests/>.

## License & Copyright

[Original image](https://commons.wikimedia.org/wiki/File:Antibiotic_sensitivity_and_resistance.jpg) by [**Dr Graham Beards**](https://commons.wikimedia.org/wiki/File:Antibiotic_sensitivity_and_resistance.jpg). Submitted by [John Horgan](https://www.worldhistory.org/user/jhorgan/ "User Page: John Horgan"), published on 19 June 2024. The copyright holder has published this content under the following license: [Creative Commons Attribution-ShareAlike](https://creativecommons.org/licenses/by-sa/4.0deed.en). This license lets others remix, tweak, and build upon a work even for commercial reasons, as long as they credit the author and license their new creations under the identical terms. When republishing on the web a hyperlink back to the original content source URL must be included. Please note that content linked from this page may have different licensing terms.