Gastroenterology · UKMLA & AKT
Shigella dysentery
A free high-yield preview for the UKMLA Applied Knowledge Test. Below are the key points to recognise shigella dysentery — the full SA Note notes add investigations, management, complications and 10 practice questions.
Key high-yield points
- Gram-negative rod causing bacillary dysentery - notifiable disease in the UK
- Extremely low infectious dose - as few as 10 organisms (acid resistance via biofilm formation)
- Most UK cases are travel-acquired; rising domestic cases in MSM (S. flexneri, S. sonnei)
- Transmission - faecal-oral (person-to-person); oro-anal sexual transmission in MSM
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