MASS PRODUCTION METHOD FOR TYPHUS VACCINE REVEALED

Climaxing a 20-year search for a means to combat effectively typhus fever, Hans Zinsser, Charles Wilder Professor of Bacteriology and Immunology; John F. Enders, assistant professor in the same field, and Dr. Harry Plotz, visiting research expert from the Pasteur Institute of Paris, announced yesterday in the publication, Science, the discovery of a new method making possible the production of enough vaccine to immunize an entire nation from the louse-carried scourge.

Discovered at the Harvard Medical School, the vaccine will be available to all nations immediately, it was revealed. The disease, which has been a deadly plague for centuries in Europe and Asia, has a mortality rate of 60% in Europe and 30% in America during epidemics. The discovery is especially pertinent now since typhus is a major medical worry in the present European war. Nearly 7,000,000 cases were reported in Russia in the years 1919-1923.