PRELIMINARY INVESTIGATION OF LEISHMANIA INFECTION IN WANGPING STREET MENTOUGOU DISTRICT, BEIJING Journal title: Acta Parasitologica et Medica Entomologica Sinica Authors: Xing-long LI, Zhi-yue WANG, Zhan-ying HE, Xiao-mei WANG, Wen-ting WU, Rui-qi SHI Subject(s): Biological Sciences