Drug-resistant salmonellosis

Area of Science:

• Microbiology
• Infectious Diseases
• Antimicrobial Resistance

Background:

• Plasmid-mediated resistance to first-line drugs has been established.
• Emergence of chromosomally-mediated quinolone resistance in typhoid fever is a significant clinical challenge.
• Increasing reports of quinolone insensitivity and treatment failures with ciprofloxacin necessitate alternative therapeutic strategies.

Purpose of the Study:

• To highlight the growing concern of quinolone resistance in typhoid fever.
• To discuss the efficacy of third-generation cephalosporins as an alternative treatment.
• To report on the observed return of sensitivity to older antibiotics.

Main Methods:

• Literature review on antimicrobial resistance patterns in typhoid fever.
• Analysis of clinical data on treatment outcomes with various antibiotics.
• Surveillance of antibiotic sensitivity trends.

Main Results:

• Chromosomally-mediated quinolone resistance is an increasing problem in typhoid fever.
• Ciprofloxacin treatment failures are frequently reported.
• Third-generation cephalosporins are effective alternatives.
• Some studies indicate a resurgence of sensitivity to chloramphenicol and furazolidone.

Conclusions:

• The rise in quinolone resistance requires strategic treatment adjustments.
• Higher doses and longer treatment durations may help overcome fluoroquinolone insensitivity.
• Third-generation cephalosporins represent a viable therapeutic option.
• The re-emergence of sensitivity to chloramphenicol and furazolidone is a positive development for typhoid fever management.