<prompt> Infectious mononucleosis, a viral disorder that can be debilitating, is characterized by which of the following statements?It is most prevalent in children less than 14 years oldIt is caused by a rhabdovirusThe causative pathogen is an Epstein-Barr virusAffected persons respond to treatment with the production of heterophil antibodies  <response>: All of Kochs postulates have been verified for the relationship between infectious mononucleosis and Epstein-Barr virus, a herpesvirus. However, the relationship between this virus and Burkitts lymphoma, sarcoid, and systemic lupus erythematosus SLE is less clear. Infectious mononucleosis is most common in young adults 14 to 18 years of age and is very rare in young children. There is no specific treatment. Heterophil antibody titer is helpful in diagnosis, but is not expressed as a function of clinical recovery. 