infectious mononucleosis ( im ) patients , epstein-barr virus ( ebv ) -seropositive and seronegative healthy donors , and patients with other viral infections were tested for lymphocyte blastogenesis ( lb ) with phytohemagglutinin and six ebv ( virus concentrate , culture supernatant , and soluble [ s ] antigen ) or control antigens .
C0021345
infectious mononucleosis
C0042769
viral infections