The major animal vaccine production technologies include :
live attenuated vaccines : Attenuated from of the wild virus or bacterium , must replicate to be effective , immune response similar to natural infection , usually effective with one dose except those administered orally.
inactivated vaccines :
Cannot replicate , less interference from circulating antibody than live vaccines , generally require 2-5 doses,immune response mostly humoral , antibody titer diminishes with times.
The DNA vaccines segment is expected to witness highest growth in the forecast period.