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: Skin
Jarisch Herxheimer reaction is commonly seen in: 
Select and explain. 
A. Early syphilis, B. Late congenital syphilis, C. Latent syphilis, D. Syphilis of cardiovascular system
A: Early syphilis
Answer: A: Early syphilis 
Explanation: A i.e. Early syphilis Jarisch - Herxheimer - Reaction, consisting of fever & constitutional symptoms may follow the treatment of syphilisQ most commonly in secondary syphilis > primary syphilis > Early latent syphilis.