Susan Tousi in front of Illumina’s NovaSeq 6000, which could play a major role in lowering the cost of sequencing a human genome to $100, a goal in advancing diagnosis and treatment. The senior vice president of product development, Tousi is integral in developing Illumina machines.

Susan Tousi in front of Illumina’s NovaSeq 6000, which could play a major role in lowering the cost of sequencing a human genome to $100, a goal in advancing diagnosis and treatment. The senior vice president of product development, Tousi is integral in developing Illumina machines. Photo by Jamie Scott Lytle.

— Susan Tousi doesn’t practice medicine, unlike many in her family tree...

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