Also called innate-or born with- immunity, it is the ability of an organism to fight a disease from birth.

Species-determined inherent resistance to a disease agent, e.g., resistance of man to virus of canine distemper.

Immunity due to innate genetical characters.

immunity acquired from having had certain diseases.

inborn, non-specific immunity.

immunity to disease that occurs as part of an individual's natural biologic makeup

Inherited resistance to disease that varies between breeds, strains within breeds and individuals.