Epidemiologic aspects of human T-lymphotropic virus type I (HTLV-I) infection have been
thoroughly studied over the course of approximately 25 years since its first description. The …

Oncoviruses are implicated in approximately 12% of all human cancers. A large number of
the world's population harbors at least one of these oncoviruses, but only a small proportion …

Abstract Background Non-Hodgkin lymphoma (NHL) comprises biologically and clinically
heterogeneous subtypes. Previously, study size has limited the ability to compare and …

Background Infection is one of the main risk factors for cancer. Objectives Epidemiology,
pathogenesis, and disease burden of infection-related cancers were reviewed by infectious …

Background: Clinical investigations have shown prognostic heterogeneity within the non-
Hodgkin's lymphomas (NHLs) according to histology, but few descriptive studies have …

Non-Hodgkin lymphomas develop from nodal and extranodal lymphoid tissues. A distinct
subset of extranodal lymphomas arising from B cells of the marginal zone (MZ) of mucosa …

Although the risk of transfusion-transmitted infections today is lower than ever, the supply of
safe blood products remains subject to contamination with known and yet to be identified …

The novel severe acute respiratory syndrome (SARS) coronavirus caused severe disease
and heavy economic losses before apparently coming under complete control. Our …

Lymphoblastic lymphoma (LBL) is a neoplasm of immature B cells committed to the B-(B-
LBL) or T-cell lineage (T-LBL) that accounts for approximately 2% of all lymphomas …

BACKGROUND: Mashhad, in the northeast of Iran has been suggested as an endemic area
for human T cell lymphotropic virus type I (HTLV-I) infection since 1996. OBJECTIVES: We …