Vaccines, encapsulated into a particulate carrier, are suitable for oral vaccination by food against the common fish pathologies in aquaculture.
Vaccines are mostly prepared using whole bacterial cells, inactivated by heating or by chemical agent (i.e. formalin), cells fractions, toxins, synthetic vaccines.
The oral administration of this microsystem by food represents a more practical, ecological and less expensive way to treat infections than immersion and injection methods.