Here we demonstrate replication of human herpesvirus 7 (HHV-7), a T-lymphot
ropic virus, in macrophages. Productive replication was lost after 2 weeks,
but HHV-7 DNA was detected up to 1 month after infection. Thus, macrophage
s become infected by HHV-7 and might play an important role as a viral rese
rvoir, as has been demonstrated for human immunodeficiency virus type 1.