 Aridis Pharmaceuticals, Inc. Nasdaq: ARDS, a biopharmaceutical company focused on the discovery and development of novel anti-infective therapies to treat life-threatening bacterial infections, announced today that it has appointed Dr. Hasan Jafri as Chief Medical Officer CMO. Dr. Jafri replaces Dr. Paul Mendelman who has been serving as the Companys interim CMO since October, 2019 and will transition to the role of senior medical advisor to the Company. 