[The effect of synthetic beta-carotene on the primary immune response of CBA strain mice].

Synthetic beta-carotene was studied for its effect on a primary humoral immune response to thymus-dependent antigen of sheep red cells. beta-Carotene was demonstrated to have immunomodulatory action. The effect depended on the dose of the agent and its administration time after immunization. The agent could produce both stimulant and suppressive effects.