Vaccinations are an important preventive measure against viral diseases and have saved many lives since their introduction. Nowadays, any doctor can administer a vaccination. Patients with chronic diseases should be vaccinated according to indications. In general, it is advisable to carry out co-administration, which is usually possible without any problems with many vaccines, especially inactivated vaccines. Appropriate quality management can avoid complications. It is also important to inform patients about vaccinations and, if necessary, to remind them of their second appointment after the first vaccination in order to ensure maximum effectiveness.