The general opinion of scientists from different countries is that
the 21st century is the age of biotechnology, one of the directions
of which is the creation of bio products. Bio preparations are used
to increase efficiency in the production of food products of plant
and animal origin; neutralizing environmental pollutants with the
production of useful products from wastes; ensuring the diagnosis,
prevention and treatment of multi cellular organisms, including
humans and solving many other problems of mankind. A special
place is occupied by immunology, the science of the structure
and functions of the immune system and the study of immunity,
a specific biological property of multi cellular organisms, aimed
at protecting against genetically alien factors (microorganisms,
bacteria, viruses, plants and fungi), foreign molecules and others.
Immunity also provides immunity to the body from infections when
re-encountering the pathogen.