ANALYSIS OF K26 GENE AND ITS-1 SEQUENCE POLYMORPHISMS IN THE REEMERGING CASE OF VISCERAL LEISHMANIASIS IN BEIJING Journal title: Acta Parasitologica et Medica Entomologica Sinica Authors: Yu-lan SUN, Xiao-mei WANG, Wen-ting WU, Dai-tao ZHANG, Zhan-ying HE Subject(s): Biological Sciences