The
Great Yellow Fever Epidemic of 1820 in Savannah, GA, wiped out at least 10% of
the population. Notorious epidemics
of this often-fatal disease also hit Savannah in 1873 and 1876. But since the last Panama Canal Zone victim
of yellow fever died in 1906, Americans, Canadians, Europeans, et al, rarely pay
much attention to yellow fever. So a
friend just got held up entering a South American country for lack of a Yellow Fever
Certificate!
This
mosquito-borne disease is endemic throughout tropical & sub-tropical South
America and Africa. Illness ranges in severity from a self-limited febrile illness to severe
liver disease with hemorrhaging. Yellow fever is diagnosed based on symptoms,
physical findings, laboratory testing, and travel history, including the
possibility of exposure to infected mosquitoes. There is no specific treatment
for yellow fever; care is based on symptoms. Steps to prevent yellow fever
virus infection include using insect repellent, wearing protective clothing,
and getting vaccinated.
Vaccination
requirements are changing as more people travel, and the disease spreads. Before you travel through Africa and/or South
America, check up on the latest vaccination listings from the Centers for
Disease Control. There have been several changes this year in vaccination recommendations and various countries’
vaccination requirements. Even if the first
country you go to does not require vaccination, your next stop might!
AFRICA: Yellow fever is endemic in: Angola, Benin, Burundi,
Cameroon, Central African Republic, Chad, Congo (Republic of the), Congo, Côte
d’Ivoire, Democratic Republic of the Congo, Equatorial Guinea, Ethiopia, Gabon,
The Gambia, Ghana, Guinea-Bissau, Kenya, Liberia, Mali, Mauritania, Niger, Nigeria,
Rwanda, Senegal, Sierra Leone, Sudan, Togo, Uganda. Going to any of these? Might as well get YF vaccination, or you
probably are not going anywhere else.
Many countries without mandatory YF vaccinations DO require them if you
have been in one of these recently.
SOUTH AMERICA: Yellow fever is endemic in: Argentina (one
northern province, not Buenos Aires), Bolivia, Brazil, Colombia, Ecuador, French
Guiana, Guyana, Panama (Darien Province near Columbian border), Paraguay, Peru,
Suriname, Trinidad and Tobago, Venezuela.
For several of these countries, e.g. Panama, Argentina, it is only found
in more remote rainforest areas.
After
immunization, an International Certificate of Vaccination (Yellow Fever
Certificate) is issued, valid 10 days after vaccination and good for 10 years. Carry
your Certificate with you! Travelers who have a medical reason not to receive
the yellow fever vaccine should obtain a medical waiver. Most – not all! – countries
will accept a medical waiver for persons with a medical reason not to receive
the vaccine. Obviously, if you cannot be
vaccinated, you want to avoid travel to a lot of these YF-endemic
countries. Roadwarrioresses are not
stupid!
May your road rise to meet you!
Ann
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