Inf: Enteric Fever: Free MSRA Podcast

⚕️ FREE MSRA PODCAST – Enteric Fever (Typhoid & Paratyphoid)🎧 A focused, high-yield revision episode covering this important systemic infectious disease, perfect for exam prep or clinical recap.🧠 Key Learning Points📌 Definition• Enteric fever refers to a systemic infection caused by Salmonella enterica serotypes: Typhi (typhoid fever) and Paratyphi A, B, or C (paratyphoid fever).• Unlike general salmonella gastroenteritis, these strains cause prolonged fever and multi-organ involvement.📌 Transmission & Risk Factors• Spread by faecal-oral route – via contaminated food or water.• Major risk factors include:Poor sanitation, lack of clean waterTravel to endemic regions (Asia, Africa, Latin America)Food handlers, healthcare workersClose contact with an infected person💡 Mnemonic: “3 T’s” – Travel, Toilets, Typhi📌 Pathophysiology• Ingested bacteria invade the intestinal mucosa, are phagocytosed by macrophages, and survive intracellularly.• These infected immune cells spread bacteria via the bloodstream (bacteraemia) to the liver, spleen, bone marrow, and gallbladder.• Bacteria re-enter the gut via bile → excreted in faeces → cycle continues.💡 "Hijack the host to spread the dose."📌 Clinical Features• Fever: Gradual onset → sustained high-grade fever• GI symptoms: Constipation (early typhoid), later diarrhoea• Other features: Headache, malaise, abdominal pain, anorexia, rose spots on trunk (~40% of cases, more common in paratyphoid)• Relative bradycardia, abdominal distension, hepatosplenomegaly💡 Typhoid = fever + constipation + rash (maybe)📌 Differential Diagnosis• Bacterial: Brucellosis• Viral: Infectious mononucleosis• Parasitic: Malaria (always consider with fever + travel)• Autoimmune: Systemic lupus erythematosus (SLE)📌 Investigations• Blood cultures = Gold standard (early detection during bacteraemia phase)• Stool cultures: Useful later, or for identifying carriers• Serology (e.g. Widal test): Less reliable• PCR: Rapid, accurate detection in specialist labs📌 Management• Antibiotics are central:Ciprofloxacin, Ceftriaxone, Azithromycin (guidelines depend on susceptibility)Resistance is increasing globally – therapy must be guided by cultures• Supportive care: Hydration, analgesia, nutrition• Public Health: Notifiable disease in the UK📌 Prevention• Vaccination for travellers to endemic areas• Hand hygiene, safe water, food precautions• Infection control for chronic carriers📌 Complications• Intestinal perforation, GI bleeding, sepsis• Chronic carriage (esp. adult females, gallbladder involvement)• Osteomyelitis in sickle cell disease• Meningitis, cholecystitis, organ dysfunction📌 Prognosis• Good with prompt antibiotic therapy• Delayed treatment or resistant strains = higher morbidity and complications📎 More MSRA Resources for Enteric Fever📝 Revision Notes: https://www.passthemsra.com/topic/enteric-fever-typhoid-paratyphoid-revision-notes/🧠 Flashcards: https://www.passthemsra.com/topic/enteric-fever-typhoid-paratyphoid-flashcards/💬 Accordion Q&A Notes: https://www.passthemsra.com/topic/enteric-fever-typhoid-paratyphoid-accordion-qa-notes/🚀 Rapid Quiz: https://www.passthemsra.com/topic/enteric-fever-typhoid-paratyphoid-rapid-quiz/🎓 Full Course: https://www.passthemsra.com/courses/infectious-diseases-for-the-msra/Hashtags#MSRA #MSRARevision #MSRATextbook #MSRAQuiz #MSRAQuestionBank #MSRAFlashcards #MSRAQ&ANotes #MSRAAccordions #MultiSpecialityRecruitmentAssessment #MSRAOnlineRevision #MSRARevisionWebsite #InfectiousDiseases #EntericFever