Hamilton is, as of 2004, home to two microbiological research and production facilities: the government-run Rocky Mountain Laboratories, and a branch of the Corixa Corporation (bought in the late 1990s from Ribi ImmunoChem Research, Inc.). The Corixa Corporation was bought by GlaxoSmithKline in 2005. NIAID (National Institute of Allergy and Infectious Diseases) completed construction of a Biosafety Level 4 biohazard laboratory as part of the Rocky Mountain Laboratories (RML) facility in 2008. This facility has begun operations using highly-pathogenic organisms including the Lentivirus family of viruses.