Content of T and B lymphocytes in healthy human peripheral blood

It was shown by the rosette-formation method that the number of T and B lymphocytes in human blood varies with the time of day and season of the year. The number of T cells reaches a maximum in the morning and the number of B cells in the evening. The relative percentage of B cells is higher in the fall than in winter.Presented by Academician of the Academy of Medical Sciences of the USSR V. P. Kaznacheev.Translated from Byulleten' Éksperimental'noi Biologii i Meditsiny, Vol. 82, No. 7, pp. 872–874, July, 1976.