title: [Are new vaccines the best?].
authors.affiliation: Laboratoire d'immunologie, hôpital Charles-Nicolle, Rouen.
authors.forename: F
authors.initials: F
authors.lastname: Tron
mesh_terms: D006801:Humans; D008722:Methods; D014612:Vaccines; D015164:Vaccines, Inactivated; D014614:Vaccines, Synthetic
chemical_list: D014612:Vaccines; D015164:Vaccines, Inactivated; D014614:Vaccines, Synthetic