Inf: Typhoid Fever: Free MSRA Podcast

⚕️ FREE MSRA PODCAST – Typhoid Fever🎧 A clear, high-yield breakdown of this systemic infection caused by Salmonella Typhi – essential for travel-related differentials and infection management.🧠 Key Learning Points📌 Definition• Typhoid fever (aka enteric fever) is a systemic bacterial infection caused by Salmonella enterica serotype Typhi.• Spread via contaminated food or water.📌 Causes & Risk Factors• Contaminated food/water from poor sanitation• Risk increases with: – Travel to endemic areas – Healthcare/food worker exposure – Host factors: immunosuppression, low gastric acid, extremes of age💡 Mnemonic: EOH – Environmental, Occupational, Host📌 Pathophysiology• Ingested bacteria invade gut lining• Survive inside macrophages → spread to lymph nodes → bloodstream• Invade organs (liver, spleen, gallbladder)• Shed via bile → feces → possible chronic carriage📌 Symptoms• Gradual high fever• Headache, malaise, abdominal pain• Diarrhea or constipation• Classic signs: – Rose spots (pink rash on trunk) – Relative bradycardia💡 Mnemonic: “Fevered RAT” – Rose spots, Abdominal pain, Typhoid📌 Differential Diagnosis• Malaria• Dengue• Paratyphoid• Viral hepatitis• Amoebiasis• TB• Typhus• Abdominal abscess• Cholera📌 Diagnosis• Gold standard: Blood culture (positive in ~60%)• Stool/urine culture may help• Widal test: Limited use in UK; used in endemic areas• PCR or ELISA in some settings📌 Management• Antibiotics: Based on resistance patterns: – Azithromycin, ceftriaxone, cefixime – Fluoroquinolones if sensitive• Duration: Usually 7–14 days• Supportive care: Fluids, electrolytes, nutrition• Notifiable disease in UK• Vaccination recommended for travellers📌 Complications• Intestinal perforation or bleeding• Hepatitis, renal failure, sepsis• Chronic gallbladder carriage (2–3%)• Relapse if untreated (~10%)📌 Prognosis• <1% mortality with treatment• 10–30% if untreated• Relapse and chronic carriage possible without appropriate antibiotics📎 More MSRA Resources for Typhoid Fever📝 Revision Notes: https://www.passthemsra.com/topic/typhoid-revision-notes/🧠 Flashcards: https://www.passthemsra.com/topic/typhoid-flashcards/💬 Accordion Q&A Notes: https://www.passthemsra.com/topic/typhoid-accordion-qa-notes/🚀 Rapid Quiz: https://www.passthemsra.com/topic/typhoid-rapid-quiz/🎓 Full Course: https://www.passthemsra.com/courses/infectious-diseases-for-the-msra/🧪 Quiz Bank: https://www.passthemsra.com/quizzes/typhoid/#MSRA #MSRARevision #MSRATextbook #MSRAQuiz #MSRAQuestionBank #MSRAFlashcards #MSRAQ&ANotes #MSRAAccordions #MultiSpecialityRecruitmentAssessment #MSRAOnlineRevision #MSRARevisionWebsite #InfectiousDiseases #TyphoidFever