Is breast cancer caused by a virus?
Some types of cancer are associated with viruses. Scientists are interested in whether certain viruses affect the risk of breast cancer. We do not have any conclusive information about viruses and breast cancer.
Scientists are looking for DNA sequences of viruses in human breast tumors. So far, they have not found strong evidence for a cause and effect relationship between a specific virus and human breast cancer. See The Ribbon, Vol. 5, No. 3, Fall 2000, for a discussion about the possible role of viruses in breast cancer.
Answered by: Suzanne Snedeker, Ph.D.
Last Reviewed: 05.03.06