The symptoms of typhoid fever usually develop oneor two weeks after a person becomes infected with the Salmonella typhi bacteria.
With treatment, the symptoms of typhoid fever should quickly improve within three to five days.
Iftyphoidfever isn'ttreated, it will usually get worse over the course of a few weeks, and there's a significantrisk of life-threatening complications of typhoid fever developing. Without treatment, itcan take weeks, or even months, to fully recover and symptoms can return.
Common symptoms of typhoid fever can include:
Seeyour GP as soon as possible if you have symptoms oftyphoid fever (even if you have been vaccinated against it), particularly if you have recently returned from travelling abroad.
It's unlikely that your symptoms will be caused by typhoid fever, but it's best to getthem checked out, in case you need treatment.
If you become ill while travelling abroad, you can get help by:
The Foreign & Commonwealth Office (FCO) provides travel advice by country , and the contact details of all the British consulates and embassies in foreign countries .
Before you travel, it's a good idea to make a list of relevant contact details and telephone numbers, in case of an emergency.
Bacteria are tiny, single-celled organisms that live in the body. Some can cause illness and disease and others are good for you.
Constipation is when you pass stools less often than usual, or when you have difficulty going to the toilet because your stools are hard and small.
Diarrhoea is the passing of frequent watery stools when you go to the toilet.
A fever is when you have a high body temperature (over 38C or 100.4F).
Find out about typhoid fever, what causes it, how it's treated and what you can do to protect yourself if you're travelling to a high-risk area.
Read about the symptoms of typhoid fever, which usually develop one or two weeks after infection with Salmonella typhi bacteria.
Typhoid fever is caused by a type of bacteria called Salmonella typhi.
See your GP if you think you have typhoid fever, particularly if you've recently returned from travelling abroad.
Typhoid fever can usually be successfully treated with a course of antibiotic medication. Most cases can be treated at home, but hospital admission may be required if the condition is severe.
Complications caused by typhoid fever usually only occur in people who haven't been treated with appropriate antibiotics or who weren't treated straight away.
Read about the two main vaccines against typhoid fever available in the UK - the Vi vaccine which is given as a single injection and the Ty21a vaccine (three capsules).
Dominic Aguiar developed typhoid during a trip to India. He says it was lack of planning that caused the infection.