Four virus clones were derived from the Edmonston strain of measles virus by repeated plaque purification. These clones were compared with the vaccine strains Schwarz and CAM-70 in terms of biological activities including plaque formation. hemagglutination. hemolysis and replication in Vero cells and chick embryo fibroblasts (CEF). https://wholesfoodsboxs.shop/product-category/far-eastern-food/