<prompt> Jarisch Herxheimer reaction is commonly seen in:Early syphilisLate congenital syphilisLatent syphilisSyphilis of cardiovascular system  <response>: 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. 