Cepheid is working with other firms to employ the GeneXpert technology in additional types of biothreat detection.

FORBES: Nanotech Takes On Homeland Terror

Cepheid has a partnership with Northrop Grumman (nyse: NOC - news - people ) to supply the Biohazard Detection System to the U.S. Postal Service.

FORBES: Nanotech Takes On Homeland Terror

Recently, Cepheid got 510(k) clearance from the U.S. Food and Drug Administration (a pre-marketing submission to demonstrate that the device to be marketed is safe and effective) for GeneXpert to work on Group B Streptococcus.

FORBES: Nanotech Takes On Homeland Terror

Among the largest underlying components of XBI, in trading today Seattle Genetics Incorporated ( NASD: SGEN) is up about 0.1%, Cepheid Incorporated ( NASD: CPHD) is down about 2.8%, and Alexion Pharmaceuticals Incorporated ( NASD: ALXN) is lower by about 1.7%.

FORBES: Notable ETF Outflow Detected - XBI, SGEN, CPHD, ALXN

Among the largest underlying components of IWM, in trading today American Campus Communities Incorporated ( NYSE: ACC) is up about 0.4%, Cepheid Incorporated ( NASD: CPHD) is up about 0.6%, and World Fuel Services Corporation ( NYSE: INT) is lower by about 0.3%.

FORBES: IWM: Large Outflows Detected at ETF