UNITED STATES PUBLIC HEALTH SERVICE 



369 



ular belief, measles is one of the most fatal of common diseases, largely 

 because of complications. Ability to produce it experimentally in 

 animals opens the way for the discovery of the causative agent, as well 

 as of a curative or prophylactic serum. 



Assistance has been given to the Bureau of Chemistry of the Agri- 

 cultural Department by officers of the Hygienic Laboratory in the scien- 

 tific investigation of certain food products, and in giving testimony in 

 court in trials arising under the Pure Food and Drugs Act. About 

 one hundred proprietary medicines have been examined as to composi- 

 tion, strength and action. 



Treatment for rabies was successfully administered to 128 persons, 

 and 777 treatments were sent out into 14 different states. Examina- 

 tions are made at the Hygienic Laboratory for tuberculosis in govern- 

 ment employees. At the request of state authorities, officers have been 

 detailed to determine the cause of the prevalence of typhoid fever in 

 several states. A sanitary survey has been made of towns bordering on 

 Lake Erie and the Niagara Elver and the work is being continued on 

 all of the Great Lakes to collect data relative to their contamination 

 with typhoid germs. The results will be applied directly to the pre- 

 vention of sewage pollution, and the conservation of a pure water 

 supply in those communities dependent for their supply on the Great 

 Lakes. 



Much work has been done on the subject of pellagra and patients 



Disinfecting Wharf and Bathhouse, Marivales Quarantine Station, 



Philippine Islands. 



