Shares of Taysha Gene Therapies were down more than 10 percent after a patient’s death marred positive interim data for the company’s experimental gene therapy treatment for Sandhoff and Tay-Sachs diseases, which are two forms of GM2 gangliosidosis.

The U.S. Food and Drug Administration approved AbbVie’s Dalvance (dalbavancin) for acute bacterial skin and skin structure infections in pediatric patients as young as newborns.