my rapid strep test coming up negative

EXIF Image Parameters

• Compression: JPEG (old-style)
• Make: Canon
• Model: Canon EOS 7D
• Orientation: Horizontal (normal)
• Planar Configuration: Chunky
• Software: dcraw v8.99
• Date and Time (Modified): 2010:02:24 16:12:02
• Copyright: sean dreilinger http://durak.org
• Exposure: 0.013 sec (1/80)
• Aperture: f/7.1
• Exposure Program: Program AE
• ISO Speed: 1000
• Components Configuration: Y, Cb, Cr, -
• Exposure Bias: 0 EV
• Metering Mode: Multi-segment
• Flash: Off, Did not fire
• Focal Length: 22 mm
• Sub Sec Time: 04
• Color Space: Uncalibrated
• Exposure Mode: Auto
• White Balance: Auto