Health & Family Welfare Department மருத்துவம் - மக்கள் நல்வாழ்வுத் துறை
Government of Tamil Naduதமிழ்நாடு அரசு

Department of Public Health & Preventive Medicine

Typhoid Fever

Frequently Asked Questions

What is typhoid fever?

Typhoid fever is a bacterial infection of the intestinal tract and occasionally the bloodstream. The germ that causes typhoid is a unique human strain of salmonella called Salmonella typhi.

Who gets typhoid fever?

All ages are susceptible to infection throughout the year. The peak incidence is during July- September which coincides with the rainy season and increase in fly population.

How is the germ spread?

Typhoid germs are passed in the feces and, to some extent, the urine of infected people. The germs are spread by eating or drinking water or foods contaminated by feces from the infected individual.

What are the symptoms?

Symptoms may be mild or severe and may include fever, headache, constipation or diarrhea, rose-colored spots on the trunk and an enlarged spleen and liver. Relapses are common. Fatalities are less than one percent with antibiotic treatment.

How soon do symptoms appear?

Symptoms generally appear one to three weeks after exposure.

For how long can an infected person carry the typhoid germ?

The carrier stage varies from a number of days to years. Only about three percent of cases go on to become lifelong carriers of the germ and this tends to occur more often in adults than in children.

How is typhoid treated?

Specific antibiotics such as chloramphenicol, ampicillin or ciprofloxacin are often used to treat cases of typhoid.

Should infected people be isolated?

Because the germ is passed in the feces of infected people, only people with active diarrhea who are unable to control their bowel habits (infants, certain handicapped individuals) should be isolated. Most infected people may return to work or school when they have recovered, provided that they carefully wash hands after toilet visits. Children in daycare, health care workers, and persons in other sensitive settings must obtain the approval of the local or state health department before returning to their routine activities. Food handlers may not return to work until three consecutive negative stool cultures are confirmed.

Is there a vaccine for typhoid?

A vaccine is available but does not give 100% protection.

How to Control Typhoid?

The control of typhoid fever must take the form of improved sanitation and domestic and personal hygiene.