epstein-barr virus ( ebv ) -negative burkitt 's lymphoma ( bl ) cell lines have been converted to ebv genome positivity by in vitro infection with the transforming ebv strain b95.8 and with the nontransforming mutant strain p3hr1 , which has a deletion in the gene encoding the nuclear antigen ebna2 .
C0006413
burkitt 's lymphoma
C0149678
infection