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Dick test toxin

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Dick test toxin --> streptococcus erythrogenic toxin

a culture filtrate of lysogenised group A strains of beta-haemolytic streptococci, erythrogenic when inoculated into the skin of susceptible persons, and neutralised by antibodies that appear during scarlet fever convalescence; three immunological types (a, B, and C) are recognised.

Synonym: dick test toxin, erythrogenic toxin, scarlet fever erythrogenic toxin.