Complement Fixation with Brunhilde and Lansing Poliomyelitis Viruses Propagated in Tissue Culture.

Abstract
Antigens which gave specific complement fixation were concd, from the supernatant fluids of tissue cultures infected with poliomyelitis viruses (Lansing and Brunhilde strains) by a method of ultrafiltration. Their anticomplementary activity was abolished by heating. The drop method of Fulton and Dumbell was used and offered a practical way of performing the tests with minimal amts. of antigen. Specific antibodies were demonstrated in the sera of hyperimmunized monkeys as well as in sera of poliomyelitis patients.