Abstract
Summary
I. A stable EMC hemagglutinating antigen was prepared by alternate freezing and thawing of virus-infected HeLa cell cultures. 2. Optimal hemagglutination titers were obtained at 4° and 25 C with human and guinea pig erythrocytes when diluents containing potassium and boron ions were used. 3. A hemagglutination-inhibition test employing kaolin treated serum and tissue culture antigen is described and its practical usefulness in detecting antibody in human and swine serum is demonstrated.
Get full access to this article
View all access options for this article.