tuberculin

A sterile liquid containing proteins extracted from cultures of tubercle bacilli and used in tests for tuberculosis.

A liquid prepared by Koch (first in 1890) from cultures of tubercle-bacillus, administered by hypodermic injection in tuberculosis as a therapeutic or diagnostic measure. Also called Koch′ s lymph, Koch’s specific, and paratoloid.

A ptomaïne formed by the action of the tubercle-bacillus.

A fluid containing the products formed by the growth of the tubercle bacillus in a suitable culture medium.

An antigen used in the diagnosis of tuberculosis

a sterile liquid containing a purified protein derivative of the tuberculosis bacterium; used in the diagnosis of tuberculosis