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Global Promise

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Global Promise Home Health Innovation Before You Send In Your Saliva

Before You Send In Your Saliva

Direct-to-consumer genetic tests are popular. For a few hundred dollars, companies like 23andMe and AncestryDNA promise information about disease risk for customers and their children, details about ancestry, and insights about personal characteristics—like why you may think cilantro tastes like soap.

It’s a simple process. Customers just pay, sign a waiver, and send in a cheek swab or vial of saliva. But did you know these companies can sell your genetic information? As this testing becomes more popular, Johns Hopkins genetic experts worry that consumers are taking these tests without understanding their potential pitfalls.

Read an explanation about the limitations and risks of seeking medical and ancestry insights through direct-to-consumer DNA tests.


Charles Wiener

President, Johns Hopkins Medicine International Professor of Medicine and Physiology, Johns Hopkins University School of Medicine Charles Wiener oversees Johns Hopkins Medicine’s international enterprises, developing sustainable, innovative collaborations that raise the standard of health care around the world and providing personalized care for diverse populations. Johns Hopkins Medicine International serves as the global ambassador of the Johns Hopkins Medicine mission, leveraging JHM’s extensive knowledge base in medicine, nursing, public health, medical education, research and health care administration to deliver the promise of medicine across the globe. Dr. Wiener previously spent three years as Johns Hopkins Medicine International’s vice president of academic affairs and vice president of Asia operations. In these roles, he led multiple global projects, including strategic planning, oversight of educational infrastructure planning and medical training. He focused on coordinating faculty involvement in advancing Johns Hopkins’ growing international collaborations. Click here to learn more about Charlie.

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