532 



GENERAL THERAPEUTIC MEASURES 



Testing a Lot of Serum to Discover the Possible Presence 

 of Contaminations 



tion. In the first place, the animal to be treated should be properly pre- 

 pared, the site of inoculation should be carefully cleansed and disinfected; 

 all instruments and utensils coming in contact with the material to be 

 administered should be thoroughly sterilized and care taken to prevent 



ithem from coming 

 in contact with con- 

 t a m inating agents 

 after having been so 

 sterilized. Bacterial 

 suspensions should 

 be shaken vigorous- 

 ly to insure an even 

 mixture and great 

 care should be taken 

 to see that the dose 

 administered is ac- 

 curate. When deal- 

 ing with such prod- 

 ucts as anthrax vac- 

 cine and hog cholera 

 virus it is important 

 that the empty con- 

 tainers and unused 

 portions of such 

 products be properly disposed of and not carelessly thrown aside with the 

 possibility of their being a factor in future outbreaks of the disease. 



Another important feature to be considered in biological therapy is 

 the method of the keeping of these products. All biological products are 

 very sensitive to ex- 

 posure to light and 

 to high tempera- 

 tures. It is neces- 

 sary to protect these 

 products from light 

 and to keep them at 

 a somewhat cool 

 temperature in order 

 to avoid deteriora- 

 tion. Practitioners 

 have no means of 

 recognizing changes 

 that may have taken 

 place in a product 

 and may, at times, 

 use it after it has 

 become inert. This 

 phase is particular- 

 ly important in con- 

 nection with immunization of highly infectious diseases where, with the 

 aid of vaccines, as for instance with anthrax, we desire to check the 



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