The aim of the present study was to improve the effectiveness of pulmonary vaccination
that passive inhalation is feasible , effective and suitable for mass vaccination of chickens
The aim of the present study was to improve the effectiveness of pulmonary vaccination by increasing the vaccine dose deposited in the lungs and by the use of suitable adjuvants .
Overall , our results indicate that passive inhalation is feasible , effective and suitable for mass vaccination of chickens if it can be adapted to field settings .