Use of the dermojet apparatus for vaccinations against myxomatosis

Abstract

Station expérimentale d'Avicullure B.P. 9 , 22ggO Ploulragaîz (France) Rabhits held 1 days in an ammonia environment at the level of 30 ppm (S + ) and rabbits in a normal environment (S-) were intranasally inoculated 4 times with Pasteurella multocida (io l bacteria j inoculuiu).In the sensibilized animals (S + ) lung lesions were significantly more frequent and more acute than in the non sensibilized ones (S-). Bacteriological investigations showed that in the (S-) rabbits, the mucosa of the upper respiratory tract had entirely played its role in filtrating and destructing the bacteria : in (S-) animals, lungs were sterile or poorly infected whereas in (S + ) animals, they were heavily contaminated.Use of the dermojet apparatus for vaccinations against myxomatosis M. DURAND R. LOQUERIE Laboratoire Roger l3ellon, Département t!/!!/7?f!f!, i5g, avenue du Roule, 92200 1'"e H illy>-. Çl (J'-.5e.iHé' (France)The DERMOJET is an injector apparatus without needle used to vaccinate rabbits by simple projection of the vaccine at the inner side and towards the basis of the external ear. However, this apparatus must be used with precautions and the instructions must be followed carefully when vaccinating against myxomatosis.The procedure is only fully efficient in very young, newly weaned rabbits, but the protection obtained, although rapid is transitory. It