[Rosette-forming lymphocytes in the peripheral blood of normal children].

The study included 180 healthy children distributted into age groups from newborns to 16 years of age. The subpopulations of early E and EAC (T and B) rosette forming lymphocytes were determined. It was found that the main difference is placed in percentual mean values of the newborn where the value of T lymphocytes is less than for the rest of the ages studied, remaining stable beginning at the age of one year. In newborns, the values of B lymphocytes are greater; later, they drop but remain stable also since the age of one.