PROCESS FOR PROPAGATING MICROORGANISMS IN VIVO BY USING CELL LINES WHICH LACK HUMAN CLASS II HISTOCOMPATIBILITY ANTIGENS

摘要

Cell lines which lack human class II histocompatibility antigens are disclosed. The cell lines may be utilized within a method for propagating microorganisms, such as viruses, for determining the presence and/or amount of antibody to a microorganism in a biological fluid, and within a method for producing antibodies to a selected microorganism.