0.79 CME

Typhoid Fever: A Neglected Tropical Infection?

Speaker: Dr. Amitav Banerjee

Emeritus Professor, Epidemiology, Dr. D.Y. Patil Medical College, Pune

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Description

Typhoid fever remains a significant public health challenge, particularly in low- and middle-income countries, yet it is often overlooked among neglected tropical infections. This webinar will explore the epidemiology, transmission dynamics, and clinical presentation of typhoid fever in contemporary practice. Participants will gain insights into diagnostic challenges, antimicrobial resistance patterns, and evidence-based treatment strategies. The session will also discuss prevention measures, including vaccination, sanitation, and public health interventions. Designed for healthcare professionals, this discussion aims to renew focus on typhoid fever as a preventable and manageable infectious disease.

Summary Listen

  • TIFOIfeather, often neglected as a tropical infection, remains a significant public health concern, particularly in developing countries with poor sanitation and hygiene. Outbreaks, like the recent one in Gandhinagarh and the one investigated two decades ago, highlight the persistence of the disease and potential worsening of the situation.
  • The epidemiology of TIFOIfeather is driven by several factors, including the presence of chronic carriers, contaminated water and food sources, and poor sanitation. While urban areas face higher prevalence due to population density and food handling practices, the source of infection traces back to fecal contamination by infected individuals.
  • Pathogenesis involves ingestion of Salmonella Typhi, leading to intestinal epithelium penetration and systemic dissemination via the lymphatic and blood streams. This can result in complications such as intestinal perforation, hemorrhage, and even multi-organ failure in severe, untreated cases.
  • Diagnosis relies on blood culture as the gold standard, while stool and urine cultures are useful for identifying chronic carriers. Serological tests like the Widal test are less specific and may yield false results, limiting their diagnostic value.
  • Management involves antibiotic treatment guided by antibiotic sensitivity testing due to increasing drug resistance. Prevention strategies focus on long-term improvements in hygiene and sanitation, supplemented by vaccination to reduce the risk of infection, particularly in high-risk populations.
  • The past outbreak investigation demonstrated the importance of identifying the source of contamination through techniques like free chlorine testing and collaboration between public health authorities and community members. Community participation can contribute to effective disease control.
  • The high school students or lay persons by checking the water using authoritative agent or by keeping watch on broken pipes or the public nuisance can help a lot in bringing the diseases under control.

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