by 
Travelers who want to go to other countries usually advise to take vaccination according the visited country health situation. WHO advices travelers to check that they have been fully vaccinated against measles, rubella, mumps, diphtheria, tetanus, pertussis (whooping cough) and poliomyelitis before starting their travel. Also the World Health Organization advice to take specific vaccination in order to protect the visited country from introducing new viruses from the travelers. Example PAHO/WHO recommends vaccination against measles and rubella for all travelers visiting countries in the Americas here.
I’m taking the Influenza vaccination which is top 10 virus now and pneumococcal vaccine to support it….
What Your Doctor May Not Tell You About(TM) Children’s Vaccinations
