[Various problems of biotechnology].

The prospects of using the methods of gene engineering for the development of viral vaccines are considered. The technological and biological barriers hampering the introduction of these biotechnological methods into the practice of vaccinal prophylaxis are analyzed. The work points out that in the near future successes may be achieved in synthetizing the internal proteins M and NP of influenza viruses and similar proteins of paramyxoviruses and rhabdoviruses, as well as in using yeast for the production of vaccine against hepatitis B.