DIRECT IMMUNOELECTRON MICROSCOPY OF TRANSMISSIBLE GASTROENTERITIS VIRUS WITH IMMUNOGLOBULIN-G AND IMMUNOGLOBULIN-A AND GUINEA-PIG COMPLEMENT

  • 1 January 1980
    • journal article
    • research article
    • Vol. 41 (1), 136-139
Abstract
Porcine colostral immunoglobulin (Ig)G and IgA, isolated from transmissible gastroenteritis virus-infected sows, were compared by direct immunoelectron microscopy. It was estimated, using antibodies with a less than a 2-fold difference in virus-neutralizing activity, that IgG was 500 times more efficient than was IgA for coating transmissible gastroenteritis virions. Guinea pig complement enhanced the antibody coating with IgG, but did not increase virus-neutralizing activity of IgG or IgA.