An Improved Process for Producing Sera and Vaccines

14,972. Stiner, O. June 21, 1913, [Convention date]. Anti-toxines, toxines, vaccines, and immunizing serums.-Relates to the production of sera, vaccines &c. by the type of process in which bacteria or their products are subjected to the action of ultra-violet rays, and consists in subjecting bacteria to the rays for a prolonged period so that the bacteria are completely opened up or disintegrated. Tubercle bacilli suspended in a solution of common salt may be treated by means of a mercury quartz lamp such as that described in Specification 7669/10. In another example, tubercle bacilli in Koch's tuberculin are subjected to the rays so as to yield a portion of their substance to the suspension fluid which is then injected into an animal for the production of a serum, or subjected to further treatment by the rays so as to be rendered partly non-poisonous and suitable for direct injection for therapeutic purposes. Diphtheria baccili may be treated in a corresponding manner. The Specification, as open to inspection under Section 91 (3) (a), comprises also the treatment of bacteria toxines, endotoxines, serums, and other. bacterial products for varying periods to reduce their virulence or to eliminate certain constituents. This subject-matter does not appear in the Specification as accepted.