Tag: Igor Koralnik

The virus responsible for progressive multifocal leukoencephalopathy (PML), a rare brain disease that typically affects AIDS patients and other individuals with compromised immune systems, has been found to be reactivated in multiple sclerosis patients being treated with natalizumab (Tysabri). The findings by Harvard researchers at Beth Israel Deaconess Medical Center (BIDMC) and collaborators at Johns…