CDC Investigators Advise Tailored Treatment for Enteric Fever Due to Antimicrobial Resistance

CDC investigators are advising that enteric fever (typhoid or paratyphoid fever) infections in travelers returning to the U.S. are likely resistant to ciprofloxacin, with some cases also resistant to ceftriaxone. They recommend that treatment be guided by susceptibility testing whenever possible. The study found cases linked to travel to various regions, including southern, southeastern, and western Asia, as well as South and Central America. Travelers to high-risk destinations are advised to be vaccinated against typhoid fever and follow safe food and water practices.

Context

Enteric fever, caused by Salmonella Typhi and Salmonella Paratyphi, is a serious illness often contracted through contaminated food and water. The CDC has identified increasing resistance to ciprofloxacin, a commonly used antibiotic, and some strains are also resistant to ceftriaxone. This trend is particularly concerning for travelers who may be unaware of the risks associated with certain regions.

Why it matters

The rise of antimicrobial resistance in enteric fever poses a significant public health challenge, particularly for travelers returning to the U.S. Infections resistant to common antibiotics can lead to more severe illness and complications. Tailored treatment based on susceptibility testing is crucial for effective management and recovery.

Implications

Travelers to high-risk areas may face heightened health risks if they contract resistant strains of enteric fever. Healthcare providers will need to adapt treatment approaches based on susceptibility testing, potentially leading to longer recovery times and increased healthcare costs. Public health strategies may need to evolve to address the growing threat of antimicrobial resistance.

What to watch

Health officials will monitor the effectiveness of current vaccines and treatment protocols as more data on resistance patterns becomes available. Increased awareness campaigns may be launched to educate travelers about vaccination and safe practices. Future studies may provide further insight into the prevalence of resistant strains in different regions.