Phylogenetic tree
Beringia
Lineage (genetic)
Human T-lymphotropic virus
Type (biology)
Phylogenetics
Biology
Human T-lymphotropic virus 1
Old World
Virus
Virology
Geography
Evolutionary biology
Genetics
Zoology
Gene
Ecology
Arctic
Neuroscience
Myelopathy
Spinal cord
T-cell leukemia
