Typhoid fever is another name for the disease known as enteric fever, which is a form of bacterial infection that occurs as a result of the bacterium Salmonella Typhi. This spreads via infected food or water through fecal matter. This disease results in fever, with an increase in fever each day, headaches, exhaustion, stomach cramps, and is highly contagious between humans. With proper treatment using antibiotics, patients usually get well after three to five days of treatment and completely recover in about one to two weeks.
Around 20% of typhoid fever cases are fatal, according to the World Health Organization (WHO). Detecting early typhoid fever symptoms can help save your life and keep you from infecting others with this highly contagious disease.
On this page, you will find all the information related to Typhoid fever, such as what are the symptoms of typhoid fever, including causes, diagnosis, treatment and prevention by Internal Medicine Doctor.
The most common symptom of typhoid is a sustained fever that can reach as high as 104°F (40°C). Other signs and symptoms of typhoid fever may include:
Left untreated, typhoid fever classically develops in four rough stages, each lasting about a week. Early antibiotic treatment usually interrupts this progression within the first few days, so most treated patients never experience the later stages.
| Week | What typically happens |
|---|---|
| Week 1 | A step-ladder fever that rises a little more each day, along with headache, general malaise and sometimes a dry cough |
| Week 2 | Fever stays high, rising-coloured spots may appear on the chest or abdomen, and abdominal discomfort or bloating can develop |
| Week 3 | The highest-risk period for serious complications, including intestinal bleeding or perforation and confusion |
| Week 4 | In survivors, fever and symptoms slowly ease, without treatment, relapse or long-term carriage of the bacteria is still possible |
The cause of typhoid fever is the bacterium Salmonella typhi which typically spreads from person to person through food or water contaminated with faecal matter containing the bacteria.
Typhoid infection cannot be spread by kissing or hugging someone who has been infected. It can spread when an uninfected person ingests foods or drinks handled by a person carrying the disease.
The disease can be fatal in some people with weakened immune systems or who don’t respond well to medication. The most common complication is diarrhea which lasts more than two weeks.
The early symptoms of typhoid fever are most commonly spread when someone ingests food or drinks that have been handled by a person carrying S. Typhi. Transmission usually occurs after ingestion of food or water containing as few as ten colony-forming units (CFU) of S. Typhi, although larger numbers are needed if environmental contamination with faeces is present.
Typhoid bacteria can also live in sewage and survive for up to one week outside a human host in optimal conditions.
Yes, typhoid fever is a contagious disease, spread through the faecal-oral route rather than through the air. A person with typhoid sheds Salmonella Typhi in their stool (and sometimes urine), which can contaminate food or water if hands are not washed properly afterwards.
You can also remain contagious for some time after the fever itself has gone. Most people clear the bacteria within a few weeks of finishing antibiotics, but a small percentage roughly 1% to 4% — become long-term carriers, continuing to shed the bacteria in their stool for a year or more without any symptoms themselves.
Following a week of the incubation period (time between infection and onset of illness), a high fever occurs and is frequently accompanied by abdominal pain. Most infected persons experience only mild or moderate symptoms and may be so ill for as little as 24 hours.
However, 10%-15% of infected individuals become acutely ill, enough to require hospitalization. Typhoid fever can be life-threatening, especially among children under five years old, who are less likely than adults to survive without treatment.
With mild typhoid fever symptoms, you can also experience typhoid without fever symptoms for several weeks or months. In more severe cases, patients may experience delirium or seizures. Typhoid fever usually resolves within 3-6 weeks without complications, but it could lead to intestinal perforation or heart failure if left untreated.
So, once the symptoms start surfacing, it’s important to seek immediate medical care since its complications can be life-threatening.
A diagnosis of typhoid can be made based on your typhoid fever symptoms and a physical examination. Your doctor may also order blood tests or stool culture. In some cases, a bone marrow biopsy may be necessary. Sometimes, your doctor may also order imaging tests, such as an abdominal CT scan.
If left untreated, the disease can lead to life-threatening complications. Treatment for typhoid includes antibiotics in both pill form and IV form. The antibiotics must continue for three days after the fever subsides in order to prevent a relapse of the infection.
Recovery time depends heavily on how quickly treatment starts. Here is a straightforward comparison:
| With prompt antibiotic treatment | Without treatment | |
|---|---|---|
| Fever starts easing | 3–5 days after starting antibiotics | Fever may keep rising for 2–3 weeks |
| Feeling noticeably better | About 7–10 days | Not applicable — risk of complications instead rises |
| Full recovery | 1–2 weeks in most cases | Up to a month, if the person survives without complications |
| Relapse risk | Up to about 10%, usually 1–3 weeks after finishing antibiotics | Higher, and complications are more likely |
Typhoid can “cure” in as few as 7 to 14 days with the right antibiotics, but without treatment it can last a month or longer and carries a much higher risk of serious complications.
As treatment starts working, most people notice a fairly consistent pattern of improvement:
If fever or other symptoms come back after seeming to improve, contact your doctor. This can be a sign of relapse and may need a further course of antibiotics.
If you think you have typhoid, see your doctor right away. Early diagnosis and treatment are key to a full recovery. Treatment involves taking antibiotics for 7-14 days. Bed rest and fluids are also important. In severe cases, hospitalization may be necessary.
The prognosis of the disease is usually excellent with early diagnosis and treatment.
However, in some people who have weakened immune systems or who don’t respond well to medication, the disease can be fatal. The most common complication is diarrhoea, which lasts more than two weeks.
If you think you or your child has typhoid fever symptoms, see a doctor right away. The earlier the diagnosis, the better. Typhoid fever is not usually fatal if it’s treated early.
The most common form of treatment is antibiotics given by mouth or through an IV in a hospital setting. Typhoid fever can also be treated with antibiotics taken as pills at home.
A person with typhoid fever will feel better within ten days of starting antibiotics, but they should stay in bed until they are no longer sick from their illness because their immune system may still be weak.
At CK Birla hospital, we follow a multispecialty team-based approach to offer our patients premium quality care. Our Department of Internal Medicine is a dedicated department for treating a wide range of infectious diseases. As a NABH accredited hospital, we adhere to international clinical and safety protocols and provide stringent infection control measures.
Our care facility is prominent for employing world-class specialists like Dr Rajeev Gupta, Dr Abhay Ahluwalia, and Dr Kuldeep Grover, who always put their best foot forward in treating the patients. Visit our website to get more information about our services: https://www.ckbhospital.com/
Typhoid fever, also called enteric fever, is a bacterial infection caused by Salmonella Typhi. It spreads through food or water contaminated with faecal matter and causes a rising fever, headache, weakness and stomach pain.
Typhoid is caused by ingesting food or water contaminated with the Salmonella Typhi bacterium, usually due to poor sanitation, unwashed hands, or food handled by an infected person or carrier.
A sustained, gradually rising fever (up to 104°F/40°C), headache, lethargy, loss of appetite, abdominal pain, and sometimes pink spots on the chest or diarrhoea. Symptoms in adults and children are broadly similar, though children may be more prone to complications.
Yes. It spreads through the faecal-oral route typically through food or water contaminated by an infected person’s stool. A small number of people remain contagious “carriers” for a year or more even after their own symptoms have gone.
Typhoid classically progresses over four weekly stages including a rising fever in week 1, sustained high fever with possible rose spots in week 2, the highest risk of serious complications in week 3, and gradual recovery in week 4 for survivors. Early antibiotics usually stop this progression within the first few days.
With prompt antibiotic treatment, fever usually starts easing within 3-5 days and most people recover fully within 1-2 weeks, with a typical 7–14 day course of antibiotics. Left untreated, the illness can last up to a month and carries a much higher risk of complications.
A lower, less frequent fever, returning appetite, improving energy, and easing headache and abdominal symptoms are all good signs of recovery. If symptoms return after improving, contact your doctor promptly, as this can indicate a relapse.
It can be, particularly if diagnosis or treatment is delayed. Serious complications such as intestinal bleeding or perforation occur in around 10–15% of hospitalised patients, usually after 2–3 weeks of untreated illness.
Yes. Some people, particularly if partially treated, previously vaccinated, or infected with a milder strain, experience only a low-grade fever or mild discomfort rather than the classic high, rising fever. This can make the illness easy to miss without a blood test, so it is worth seeing a doctor for any unexplained, persistent fever.
