Under regulations set out by the World Health Organization (WHO), anyone traveling to a country or area where the Aedes aegypti mosquito is found must have the vaccine or have an International Certificate of Vaccination or Prophylaxis (ICVP). You can find a list of all the countries that require you to have an ICVP in the WHO International travel and health guide. You can also search the country information on NaTHNaC to find out whether the places you are visiting require an ICVP.


Know more: https://www.travel-doc.com/service/yellowfever/