Official websites use .gov A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Heidelberger's work on the antigenic properties of pneumococcus polysaccharides was met with skepticism at first. Critics charged that his solutions had been tainted with proteins or protein-like substances, and that these were responsible for the observed antigenic effect. Heidelberger methodically responded to these charges in articles such as this, in which he presented the results of many different experiments that showed that the specific antigenic substance was not a protein, but a structurally unique polysaccharide.
Copyright:
This item may be under copyright protection; contact the copyright owner for permission before re-use.