I just did 3 back to back tests on my meter using the same finger at the same time with same strips and got readings with a 20 point spread! (drrosedale.tenderapp.com)
The other four candidates are tests that detect antigens to Ebola in blood and other fluids — in many cases, using the same strip format and analytical technique, called enzyme - linked immunosorbent assay (ELISA), as over-the-counter pregnancy - test kits. (scientificamerican.com)