In Africa, a fast growing tumor of the jaw in children is caused by the EB virus. Cancer seems to occur in people who lack EB antibodies - evidently malaria helps suppress or sidetrack the immune system. In areas without malaria, Burkitts lymphoma is rare. Now it is appearing in AIDS patients. EB virus is also associated with nasopharyngeal carcinoma, in southeast Asia B. Infectious Mononucleosis - also caused by EB virus, evidently in developed countries children get infected early and develop Ab.
Most serious complication is splenomegaly.
Get lots of abnormal lymphocytes - mononuclear cells. B cells produce several kinds of heterophile antibodies which can be tested for in screening assays. C. Yellow fever - arbovirus, injected into skin by mosquito. Virus spread to lymph nodes, then liver, spleen, kidney and heart. Fever, chills, headache, backache - then nausea, vomiting and jaundice.