Target intelligence / Profile preview

Salmonella enterica serovar Typhi (S. Typhi)

Target
S. Typhi
Molecular classification
Bacterium, Gram-negative bacteria, Enterobacteriaceae
01

Overview

Salmonella enterica serovar Typhi is a Gram-negative bacterium that causes typhoid fever in humans. It is strictly adapted to human hosts and spreads through the ingestion of contaminated food or water. Key virulence factors include the Vi antigen and typhoid toxin. Effective prevention includes ensuring access to clean drinking water, proper hand hygiene, and safe food handling practices. Antibiotic therapy cures most cases if administered promptly; however, antibiotic resistance is an emerging concern.

Other names
Typhoid bacillusSalmonella Typhi
02

Mechanism of action

Antibiotics inhibit bacterial cell wall synthesis, DNA replication, or protein synthesis.

03

Biological functions

InfectionPathogenesisColonizationImmune evasion
04

Disease associations

Typhoid feverBacteremiaInfection
05

Safety considerations

Antibiotic resistanceCarrier state (asymptomatic infection)Relapse of infection
06

Interacting drugs

Antibiotics (e.g., fluoroquinolones, cephalosporins, azithromycin)
07

Biomarkers

Blood culture (presence of S. Typhi)Widal test (detects antibodies against O and H antigens)TyphiDOT (detects IgM and IgG antibodies)

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