The
U.
S.
Army
Medical
Research
Institute of
Infectious
Diseases of Fort Detrick,
Maryland.
The USAMRIID have a lot of laboratories, conducts experiments with biological agents, biological warfare defense and a whole lot of other things that has to do with diseases and control of disease. They are the "only DoD (Department of Defense) laboratory equipped to study highly hazardous viruses at Biosafety Level 4", or so they say.
They share knowledge with the CDC (Center for Disease Control (and prevention)) and the WHO. Who's the who? The World Health Organization.
The USAMRIID is located at http://www.usamriid.army.mil/ .