A FLOCCULATION TEST FOR SALMONELLA ANTIBODIES USING SENSITIZED BENTONITE PARTICLES

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Abstract
A rapid slide flocculation test using bentonite particles sensitized with salmonella O somatic antigen extracts has been described. A polyvalent antigen was also prepared using a number of salmonella O extracts thereby making the test useful for the screening of either a monovalent antibody or covering a wide range of O groups. The sensitized test antigen can be lyophilized and, when rehydrated, yields reproducible results. This investigation marks the first reported successful sensitization of bentonite with polysaccharide material. The practical application of this test is now undergoing investigation.