See the complete answer to your question in Leonid Livak'a essay, 'Why is Dracula Afraid of Garlic, Or Anton Chekhov and 'the jews',' published in David Bethea, Lazar Fleishman, Alexander Ospovat, eds. The Real Life of Pierre Delalande: Studies in Russian and Comparative Literature to Honor Alexander Dolinin , 2 vols. Stanford: Stanford Slavic Studies, 2007, I: 126-53.