Glossary of terms used on this site |Human papilloma virus|| A
member of a family of viruses that can cause abnormal tissue
growth (for example, genital warts) and other changes to cells.
Infection with certain types of HPV increases the risk of
developing cervical cancer. Also called HPV. |Human T-cell
leukemia virus type 1|| A type of virus that infects T cells (a
type of white blood cell) and can cause leukemia and lymphoma.
Human T-cell leukemia virus type 1 is spread by sharing syringes
or needles, through blood transfusions or sexual contact, and
from mother to child during birth or breast-feeding. Also called
HTLV-1 and human T-cell lymphotropic virus type 1. An abnormal
increase in the number of cells in an organ or tissue.