We examined human tongue epithelium and serum samples at autopsy for evidence of latent Epstein-Barr virus (FBV) infection. Although clinical serology revealed anti-HBV antibodies in most sera indicating past FBV infection, we found no Epstein-Barr nuclear antigen (EBNA-coding sequences in tongue tissue-by polymerase chain reaction (PCR). or Epstein-Barr-encoded RNA (EBERI) by in situ hybridization. Tongue epithelium does not appear to be a natural reservoir for latent by EBV in immunocompetent hosts