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[The Epstein-Barr virus in patients with infectious endocarditis].

Serological markers of Epstein-Barr virus (EBV) infection has been investigated in 28 patients with infectious endocarditis. In 75% of patients IgM antibodies to "early" antigen of the virus which are the marker of active viral infection occurred vs 6.2% among healthy blood donors. Specific for infectious endocarditis reaction profile (anti-EBV combination in one person) indicates reactivation of latent viral infection. The conclusion is made on the necessity of further investigation of both the role of EBV in pathogenesis of pyoseptic diseases and immunologic mechanisms for reactivation of latent viral infections.