A Review of Novel Approaches and Drug Delivery Strategies for the Treatment of Typhoid Fever

Typhoid fever, caused by Salmonella enterica serovar Typhi, remains a significant public health concern, particularly in resource-limited regions lacking access to clean water and sanitation. The emergence of multidrug-resistant and extensively drug-resistant S. Typhi strains has complicated conventional treatment strategies, necessitating innovative approaches to combat the disease effectively. Recent advancements in drug delivery systems and therapeutic strategies have shown promise in addressing these challenges. This review highlights novel approaches to enhance the efficacy of typhoid treatment, including nanotechnology-based drug delivery systems, targeted therapies, controlled-release formulations, and vaccine-driven strategies. Nanoparticles, lipid-based systems, and polymeric carriers enable improved drug bioavailability and site-specific delivery, minimizing off-target effects and resistance development. Controlled-release systems, particularly for oral antibiotics, facilitate sustained drug release, ensuring consistent therapeutic levels and enhanced patient compliance. Additionally, innovative antibiotic regimens, combination therapies, and immunomodulatory treatments are being explored to tackle resistant S. Typhi strains. Vaccine advancements, including conjugate vaccines and live attenuated formulations, aim to provide long-lasting immunity, reducing the overall disease burden. These strategies collectively offer a multifaceted approach to improving typhoid management, addressing the dual challenges of resistance and limited healthcare infrastructure. By integrating these novel solutions into clinical practice, the global fight against typhoid fever could witness significant advancements, paving the way for reduced morbidity and mortality, particularly in vulnerable populations. This review highlights the importance of continued research and development to overcome the hurdles posed by MDR and XDR S. Typhi and achieve sustainable improvements in public health outcomes.