Yellow Fever
Travel Health

From: Travel Health Information and Advice

See Also: Deep Vein Thrombosis

Yellow Fever
Yellow fever is a viral disease that is spread by mosquitoes that have been infected with the virus from either another human or a monkey. In severe cases the virus causes hemorrhagic fever and has a high fatality rate.

Cause of Yellow Fever
Yellow fever is a type of flavivirus that affects humans and monkeys and is transmitted from those already infected with the virus to others via the bite of a Aedes aegypti mosquito.

Symptoms of Yellow Fever
The incubation period is between 3 days to a week and will produce symptoms such as:

In many cases the symptoms will go within a few days and the patient makes a full recovery, however in some patients the disease can be more serious affecting various internal organs such as the kidneys, liver and heart, causing further complications such as:

Diagnosing Yellow Fever
Blood testing is used to identify the virus.

Treatment of Yellow Fever
There is no set treatment for yellow fever, it is a more a case of rest and treating the symptoms in order to make the patient more comfortable.

Yellow Fever Vaccine
If travelling to endemic areas you are strongly advised to have a yellow fever vaccination which will help protect you from the virus. Always consult your doctor well before travelling to ensure you are correctly vaccinated for the regions you will be travelling to.

Some countries will require you to have an International Certificate of Vaccination against Yellow Fever in order to permit you entry into the country, this particularly applies if you are travelling from an area where the virus is endemic.

Prevention Of Yellow Fever
The best means of protection is through having a vaccination, without a vaccine the virus has a high fatality rate. Other precautions include:

Affected Areas
Tropical areas are most affected such as sub-Saharan Africa and South America.