1. The locomotion and the adhesion of neutrophil leucocytes in response to Bordetella pertussis products have been studied using automated tracking and flow chamber systems. a. The treatment of neutrophil leucocytes with 100 ng/ml pertussis toxin (PT) significantly inhibits the neutrophil adhesion and movement which are enhanced by the chemotactic factor FMLP. This inhibition was noticed after 30 minutes of pre-incubation of the cells with FT at 3
