home  
     
Slide 027 Epidemiologic Basis of Tuberculosis Control
next Next
previous Previous
beginning First
last Last
Original Tuberculin PPD-S (#23) prepared by Florence Seibert.  PPD-S is not available for general use, but serves as the international standard.  Picture kindly provided by Michael J Brennan, Chris Anderson, and Joseph Quander of the United States Food and Drug administration. 
   
Go to top

Last update: September 10, 2010