Caused by a virus transmitted by an infected mosquito, yellow fever is only found in sub-Saharan Africa and South America. Yellow fever is so called because of the jaundice that follows the liver damage it causes. Infected individuals also suffer from fever, kidney failure and, in the final stages, internal haemorrhaging. There is no specific treatment--symptoms are treated as they occur--and 60 per cent of cases are fatal.
That said, cases among travellers are rare because there is a very effective vaccine available that provides virtually complete cover ten days after vaccination. Anyone vaccinated will receive a certificate that they may be asked to provide at border crossings. Failure to do so may result in vaccination on the spot or refusal of entry.
* Nomad offers a travel-health consultancy service, with three clinics in London and one in Bristol. You can also get advice during office hours by calling 0906 863 3414 (60p per minute) or visiting www.nomadtravel.co.uk
With all insect-borne diseases me key thing to remember is that if you don't get bitten, you cant contract the disease. …