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Areas with Risk of Yellow Fever Virus Transmission in South America

Map: South America showing areas at risk for Yellow Fever Transmision in Columbia, Venezuela, Guyana, Suriname, French Guiana, Brazil, Paraguay, and parts of Ecuador, Peru, Bolivia, Argentina, and Uruguay

(Updated May 5, 2018)

1This map aligns with recommendations published by the World Health Organization (WHO). It is an updated version of the 2010 map created by the Informal WHO Working Group on the Geographic Risk of Yellow Fever.

2In 2017, CDC expanded yellow fever vaccination recommendations for travelers to Brazil due to large outbreaks of yellow fever in multiple states within that country. Please refer to the Yellow Fever in Brazil Travel Notice for more information and updated recommendations.

3Yellow fever (YF) vaccination is generally not recommended in areas where there is low potential for YF virus exposure. However, vaccination might be considered for a small subset of travelers to these areas who are at increased risk for exposure to YF virus because of prolonged travel, heavy exposure to mosquitoes, or inability to avoid mosquito bites. Consideration for vaccination of any traveler must take into account the traveler’s risk of being infected with YF virus, country entry requirements, and individual risk factors for serious vaccine-associated adverse events (such as age or immune status).

Download South America Map pdf version [PDF – 1 page]

Data Table: Countries with risk of yellow fever virus (YFV) transmission4

  • Argentina5
  • Bolivia5
  • Brazil5
  • Colombia5
  • Ecuador5
  • French Guiana
  • Guyana
  • Panama5
  • Paraguay
  • Peru5
  • Suriname
  • Trinidad and Tobago5
  • Venezuela5

4Countries/areas where “a risk of yellow fever transmission is present,” as defined by WHO, are countries or areas where “yellow fever has been reported currently or in the past, plus vectors and animal reservoirs currently exist.”

5These countries are not holoendemic (only a portion of the country has risk of yellow fever transmission).

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