(1864–1936, may have been born in Dnipropetrovsk region) – Jewish, Israeli scientist-physician, Zionist activist. A well-known authority in the field of malaria treatment and prevention. At the same time, he worked to establish and improve the public health system and studied other diseases common in Eretz Israel, paying great attention to the prevention and minimization of the spread of infectious diseases. Made a significant contribution to the creation of modern medical terminology in Hebrew.