Typhoid fever is a serious bacterial infection that can become life-threatening if it is not treated promptly. It is caused by Salmonella typhi and usually spreads through contaminated food or water. Typhoid remains a concern in South Asia, sub-Saharan Africa and parts of Latin America, so if you’re travelling to these areas, it’s worth understanding typhoid symptoms, risks and ways to protect yourself.
What Are the Early Signs of Typhoid Fever?
Typhoid fever early symptoms typically appear one to three weeks after exposure, beginning gradually. According to the NHS, common early signs include:- A sustained high fever, rising steadily to 39 to 40 degrees Celsius
- Persistent headache and general fatigue
- Muscle aches and loss of appetite
- Abdominal discomfort and constipation, sometimes followed by diarrhoea
How Typhoid Symptoms Progress Over Time
Without treatment, typhoid symptoms can become more severe over several weeks. During the second week, some people develop a faint, rose-coloured rash on the torso. By the third week, more serious complications can occur, including intestinal bleeding and problems affecting other organs. Getting diagnosed and treated early can significantly reduce the risk of these complications, as highlighted by the World Health Organization.What Are the Complications of Typhoid Fever?
Typhoid fever complications are rare in treated cases but can be severe when treatment is delayed. The most serious include:- Intestinal perforation, where the bowel wall develops a hole requiring emergency surgery
- Internal bleeding from the digestive tract
- Inflammation of the heart muscle (myocarditis) or brain (encephalitis)
- Kidney failure in severe cases
Typhoid Fever Treatment and Recovery Time
Typhoid fever treatment usually involves antibiotics, prescribed following a confirmed diagnosis. The NHS advises that most people start to feel better within two to three days of starting antibiotics. Even once treatment has started, recovery can take time. Most people recover within two to four weeks, depending on how severe the infection is. More serious cases may require hospital treatment.How Effective Is the Typhoid Vaccine?
The typhoid vaccine is the most reliable way to reduce your risk before travel. Typhoid vaccine effectiveness ranges from 50 to 80 per cent depending on the type used. Two typhoid vaccines are available in the UK:- Injectable Vi polysaccharide vaccine: a single dose, effective for around two to three years.
- Oral Ty21a vaccine: taken over several days, offering a similar duration of protection.