Ruth Arnon is the Paul Ehrlich Professor of Immunology at the Weizmann Institute of Science where she also served as the vice-president (1988-1997). She is a member and presently serves as the President of the Israel Academy of Sciences and Humanities and was previously chair of the sciences division. She holds positions on many international scientific bodies and in the past served as science advisor to the president of Israel. She has been a visiting scientist at numerous prestigious international institutions.
She has made significant contributions to the fields of vaccine development, cancer research and to the study of parasitic diseases and has received many prizes for her work, including the Wolf Prize in Medicine (1999), for her joint work in developing Copaxone®, a drug for the treatment of multiple sclerosis, and the Israel Prize in Medical Research (2001).