<prompt> An HIV patient complains of visual disturbances. Examination of fundus of the eye bilateral retinal exudates and perivascular haemorrhages. Which of the following virus is the most likely causative agent?CytomegalovirusEpstein-Barr virusHerpes simplex virusHuman herpes virus 8  <response>: Patient is showing is features of CMV chorioretinitis. Chorioretinitis is the most frequent clinical manifestation of CMV. Fundus examination shows perivascular hemorrhage, exudates, necrotizing retinitis, and rhegmatogenous retinal detachment. Ref: Ocular Therapeutics Handbook: A Clinical Manual By Bruce E. Onofrey, 2nd Edition, Page 431 