we have previously shown the adjuvant activity of propranolol (prp) (a beta-adrenergic receptor antagonist) using a vaccine model for salmonella typhimurium. in this study prp was used as an adjuvant in combination with plasmodium  berghei  (p. berghei)  whole blood stage (pwbs) antigens. balb/c mice were immunized three times with a 2-week interval, either pwbs vaccine alone or in combination ...