27 April 2011 - WHO emphasizes that all travellers (domestic and international) should be up to date with routine vaccinations. Travel is a good opportunity for health care providers to review the immunization status of infants, children, adolescents and adults.
Travellers should be advised to check that they have been fully vaccinated against measles, rubella, mumps, diphtheria, tetanus, pertussis (whooping cough) and poliomyelitis before starting their travel. Non-immunized or incompletely immunized travellers should be offered the routine vaccinations recommended in their national immunization schedules, in addition to those needed for international travel (e.g. yellow fever vaccine).