Tuberculin

Rarity: Uncommon

A topic a little better known than average, read and translated beyond its own country.

Rarity follows how well known the article is: its views on the French and English Wikipedia over a year, and the number of languages it exists in.

At a glance

Class

Invention

Domain

Science and technology

Knowledge cost

2

In collections

Nobody has pulled it yet.

What Wikipedia says

Tuberculin, known in its modern form as purified protein derivative (PPD), is a combination of proteins that are used in the diagnosis of tuberculosis by injection into the skin.

Excerpt from the Wikipedia article “Tuberculin”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: Greg Knobloch, Public domain, via Wikimedia Commons.