<prompt> Which of the following statement is true regarding Acanthamoeba keratitis: September 2012For the isolation of the causative agent, corneal scraping should be cultured on a nutrient agar plateThe causative agent, Acanthamoeba is a helminth whose normal habitat is soilKeratitis due to Acanthamoeba is NOT seen in the immunocompromised patientAcanthamoeba does NOT depend upon a human host for the completion of its life-cycle  <response>: Ans. D i.e. Acanthamoeba does NOT depend upon a human host for the completion of its life-cycle 