[Comparative study of various routes of vaccination and testing. An instance of a killed bacterial vaccine].

The efficiency of intranasal subcutaneous, aerosol and digestive vaccinations with killed Klebsiella pneumoniae as vaccine was studied on the survival curves after experimental disease with pathogen K. pneumoniae I inoculated by the same routes. Results show that the local immunization is an important factor of protection and the intranasal route is very convenient.