[Present issues in antiviral vaccines (author's tranls)].

The conditions are examined, which advise the adoption or discontinuance of a vaccination. In Italy, anti-polio vaccination is compulsory and ought to be enforced also in the future. On the contrary, the vaccination against variola has to be discontinued. Specific vaccines may prevent measles and rubella and their efficacy, expecially in the case of measles, is well ascertained. A vaccine against hepatitis B virus is desirable. Controversial issues on antirabies and anti-influenza vaccines are mentioned and discussed.