Marmota himalayana acted as major infectious reservoir for up to 73.5% of the first case, artiodactyls and carnivora that could transmit plague in human comprised 15.66%.

• 青海省首发人间鼠疫病例的主要传染源为喜马拉雅旱獭 ；占 73.；7%25 ; 偶蹄类和食肉类动物占 16