Typhi

Definition

Typhi, short for Salmonella Typhi, is a Gram-negative bacterium responsible for typhoid fever. It primarily infects the gastrointestinal tract and can cause severe systemic illness.

5 Must Know Facts For Your Next Test

1. Salmonella Typhi causes typhoid fever, characterized by prolonged fever, abdominal pain, and rash.
2. Transmission occurs through ingestion of contaminated food or water.
3. The bacterium can invade the intestinal walls and enter the bloodstream, leading to systemic infection.
4. Diagnosis often involves blood, stool, or bone marrow cultures to detect S. Typhi.
5. Vaccines are available for prevention, although hygiene and sanitation are critical control measures.

Review Questions

• What disease is caused by Salmonella Typhi?
• How is Salmonella Typhi typically transmitted?
• What diagnostic methods are used to identify an infection with Salmonella Typhi?

Related terms

Gastroenteritis:

Inflammation of the stomach and intestines commonly caused by bacterial or viral infections.

Enteric Fever: A group of illnesses including typhoid fever and paratyphoid fever caused by Salmonella species.

Bacteremia:

The presence of bacteria in the bloodstream potentially leading to systemic infections.