Principles of immunology

a) Nonsusceptibility

b) Natural resistance

c) Natural immunity

Scope and importance

a) Improvement of animal productivity through genetic engineering, animal embryo technology or growth hormones.

b) Improvement of animal nutrition

c) Prevention and treatment of animal disease by vaccines, monoclonal antibodies and interferon.

d) Diagnosis of animal disease.

Application of Health biotechnology

a) Production of monoclonal antibodies used for disease diagnosis (venereal, cancer, hepatitis B and other viral disease)

b) DNA probes for disease diagnosis (malaria, sleeping sickness, kalazar)

c) Synthetic vaccines (Hepatitis B virus, E. coli vaccine for pigs, rabies virus)

d) drugs (Insulin, growth hormone)

e) Gene therapy for treatment of genetic disease

f) DNA finger printing