single intranasal adtninistration of live attenuated recotnbinant Bordetella pertussis Nathalie Mielcarek, Gilles Riveau, Franck Remoue, Rudy Antoine', Andre Capron, and Camille Locht'* INSERM Ul 67, and'INSERM U447, Pasteur Institute ofLille, 1 rue du Prnf Calmette, F-59019 Lille Cedex, ...