Quick read
Key points
- 1
Typhoid fever is a bacterial infection caused by Salmonella typhi, typically spread through contaminated food or water in areas with poor sanitation. It causes a prolonged high fever, headache, abdominal pain, and sometimes a rash or constipation or diarrhoea.
- 2
Topic-specific prevention and risk reduction will be added during the article-specific evidence audit.
- 3
You develop a persistent fever, headache, and abdominal pain, particularly after travel to an at-risk region
01 · Know
What is Typhoid fever?
Typhoid fever is a bacterial infection caused by Salmonella typhi, typically spread through contaminated food or water in areas with poor sanitation. It causes a prolonged high fever, headache, abdominal pain, and sometimes a rash or constipation or diarrhoea.
It's uncommon in Ireland but remains a risk for travellers to certain regions, particularly parts of South Asia, Africa, and Central and South America. Vaccination and careful food and water hygiene can significantly reduce risk when travelling.
02 · Understand
Clinical context
Self-care advice
See a travel health clinic well before your trip for advice on typhoid vaccination if travelling to an at-risk area.
03 · Act
When to see a doctor
- 1You develop a persistent fever, headache, and abdominal pain, particularly after travel to an at-risk region
- 2Fever lasts more than a few days or is getting progressively worse
- 3You notice a rash, severe abdominal pain, or blood in your stool
- 4You're planning travel to a typhoid-risk area and want vaccination advice
- 5Symptoms don't improve despite completing a course of antibiotics
04 · Prevent & manage
Practical steps
Take these self-care steps
These measures can help ease symptoms, support recovery, and reduce the chance of things worsening — but they don't replace medical advice if symptoms are severe or persistent.
- 1Get vaccinated before travel to at-risk areas.The typhoid vaccine offers good, though not complete, protection and is recommended for travel to certain regions.
- 2Practise careful food and water hygiene when travelling.Stick to bottled or boiled water, avoid ice, and choose thoroughly cooked, hot food to reduce risk.
- 3Complete antibiotic treatment fully if diagnosed.This is essential to fully clear the infection and prevent becoming a carrier.
- 4Rest and stay hydrated during illness.Supporting your body with fluids and rest is important while recovering.
- 5Seek medical care promptly if symptoms develop after travel.Mention your recent travel history, as this helps guide appropriate testing and treatment.
Evidence
References
BarnMD Health Intelligence uses authoritative and clinically relevant sources appropriate to the topic. References are shown so readers can inspect the evidence directly.
- HSE: Typhoid fever ↗
Medical information notice
Health education, not individual medical advice
BarnMD Health Library provides general health education for public health literacy. Reading this article does not establish a doctor-patient relationship and this information is not a diagnosis, prescription, or personalised treatment plan. If you have symptoms or concerns about your health, seek appropriate advice from a qualified healthcare professional. If you develop emergency warning signs, seek urgent or emergency medical attention.
BarnMD Bottom Line
Typhoid fever is preventable through vaccination and careful hygiene when travelling, and is treatable with antibiotics when caught promptly.
Careful food and water choices when travelling — 'boil it, cook it, peel it, or forget it' — significantly reduce your risk alongside vaccination.