This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Microbiology
[{'content': 'Chancre redux is a clinical feature of ? \nSelect and explain. \nA. Early relapsing syphilis, B. Late syphilis, C. Chancroid, D. Recurrent herpes simplex infection', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Early relapsing syphilis . Chancre redux is the appearance of relapsing lesion at the site of the healed lesion, it is due to relapse of original infection (not due to reinfection). . Dead end infection is seen in Leptospirosis 4. Human Rabies 7. T. solium Legionella 5. Endemic typhus 8. Echinococcus granulosus Tetanus 6. J.E. 9. Trichinella spiralis", 'role': 'assistant'}]