| Abstract: | It was shown by the method of local passive hemolysis in gel that the number of antibody-forming cells (AFC) in the spleen of five batches of rats obtained at different times from the nursery correlates after immunization withSalmonella typhi O antigen with the number of spontaneous AFC against that same antigen in animals of the same batch. This may indicate that the number of spontaneous AFC reflects the number of B lymphocytes immunocompetent toward the particular antigen and that it can be used to some degree to assess immunologic reactivity to that antigen before immunization.Personal Group of Academicians of the Academy of Medical Sciences of the USSR V. K. Navrotskii, Ukrainian Postgraduate Medical Institute, Khar'kov. (Presented by Academician of the Academy of Medical Sciences of the USSR V. K. Navrotskii.) Translated from Byulleten' Éksperimental'noi Biologii i Meditsiny, Vol. 81, No. 2, pp. 201–202, February, 1976. |
