PALO ALTO, Calif. & HONG KONG--(BUSINESS WIRE)--Guardant Health, Inc. (Nasdaq: GH), a leading precision oncology company, today announced the launch of the Shield™ multi-cancer detection (MCD) laboratory developed test (LDT) in multiple markets in Asia. The Shield MCD test is a methylation-based blood test for the detection of multiple cancer types including bladder, colorectal, breast, prostate, esophageal, gastric, liver, lung, ovarian and pancreas cancer in individuals aged 45 or older who a.