Not all diagnostic tests that have been developed involve biotech. BD Micro makes culture plates (plated media)and suspectibility testing (antibody discs), this is far from biotech and has been around since the days of Louis Pasteur. If you notice the way BD has broken out the businesses. Clinical diagnositic testing is not in the Bioscience group. I would agree that clinical diagnostics is benefiting from biotech (DNA amplifications, computer technology)but this is generally not thought of as biotech/life science research from those inside the ropes.