In laboratory experiments, scientists at the National Cancer Institute (NCI), part of the National Institutes of Health (NIH), and their colleagues supported by the NIH National Institute of Allergy and Infectious Disease (NIAID), have discovered an antibody that neutralizes two viruses classified as henipaviruses. Nipah virus (NiV) and Hendra virus (HeV) are highly infectious agents that transitioned from infecting flying foxes in the mid-1990s to causing fatal disease in humans and livestock in Australia, Bangladesh, India, Malaysia, and Singapore. Recent outbreaks have resulted in encephalitis and acute respiratory distress, person-to-person transmission, and up to 70 percent fatality rates. The finding appears in the Feb. 15, 2008, issue of The Journal of Infectious Diseases.