1921
Volume 18, Issue 1
  • ISSN: 0002-9637
  • E-ISSN: 1476-1645
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Abstract

Abstract

Antigens were prepared from four different strains of axenically cultivated and the -like amebae (Laredo strain). Antigen protein yields averaging 8.7 mg were obtained from 10 . Immunoelectrophoresis revealed six to eight distinct bands between 200:NIH antiserum and antigens from strains 200:NIH. HB-301:NIH, F-22, and HK-9 while only two distinct bands were detected between 200:NIH antiserum and the -like Laredo-strain antigen. In the hemagglutination test an antigen concentration of 30–40 µg protein per ml was adequate for sensitization of erythrocytes. Antigen from the Laredo strain was less reactive in the HA test than were the other antigens. These observations suggest that the -like Laredo strain is immunologically different from the typical strains of .

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/content/journals/10.4269/ajtmh.1969.18.1.TM0180010001
1969-01-01
2018-07-22
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