Johnin PPD Sample - Tuberculosis, Dried, 1947

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Summary:: Bottle of dried Johnin PPD Sample. Used by Commonwealth Serum Laboratories (CSL) Ltd, Parkville, Victoria, 1947. Johnin is a product used as a diagnostic agent, analogous to tuberculin but made from mycobacterium paratuberculosis (the causative organism of Johne's disease) grown in a broth medium containing mycobacterium phlei (timothy hay bacillus); used as an allergen to provoke reactions in infected animals.
Description:: Glass jar with glass lid, bound in plastic. Contains brown powder in clumps. Paper label.
Acquisition Information:: Donation from CSL Ltd (Commonwealth Serum Laboratories), 2004

Discipline:	Technology
Dimensions:	8.00 cm (Height), 4.50 cm (Width)

Tagged with:	medical diagnostic tests, tuberculosis
Themes this item is part of:	Medicine in Society Collection, CSL (Commonwealth Serum Laboratories) Collection
Primary Classification:	MEDICINE & HEALTH
Secondary Classification:	Medical Research
Tertiary Classification:	pharmaceuticals
Inscriptions:	Label: Jan/March 1947/Commonwealth Serum/Laboratories/Johnin P.P.D./(Dried)/2.017 gms.
Maker:	CSL Ltd (Commonwealth Serum Laboratories), Parkville, Victoria, Australia, 1947