Salt Lake Telegram | 1934-03-16 | Page 12 | Scientists Find Clue to Sleeping Sickness

SCIENTISTS FIND CLUE TO SLEEPING SICKNESS Develop Serum e u Which Protects Mice From Contracting NEW V Y YORK YORK RK March 16 UP Development UP-Development Development of a vaccine from the against 1000 to encephalitis exposures ures was disclosed today by virus of sleeping sickness victims o of sufficient Sufficient power to protect mice the Rockefeller Institute for tor Medical Research The new experiments were described described de de- scribed in the publication Science by Leslie T. T Webster and George L L. Fite of ot the institute whose scientists previously discovered the virus vIrus' of encephalitis St Louis Serums from encephalitis convalescents convalescents conval in fn St Sl Louis Kansas City and Paris Ill when mixed with living virus from rom the brains of fatal cases showed a specific protective effect when injected into the brains of mice When the the- virus was mixed with the he serum scrum of individuals and injected into the brains brains' of the mice they invariably died the scientist scientist announced Webster and File Fite found that the virus of the St Sl Louis form of epidemic epi demic demie encephalitis was different from rom the virus which caused the outbreak out out- break reak of sleeping sickness in Japan last ast summer Fifteen serums from Japanese cases provide no protection against the Sl SU Louis form they said It was explained that the experiments experiments experiments ments were made possibly only through the earlier discovery of the St Louis encephalitis virus