The Infection of Lice (Pediculus humanus) with Rickettsia prowazeki by the Injection per rectum of the Blood Platelets of Typhus-infected Guinea-pigs and the Reinfection of other Guinea-pigs from these Lice

通过直肠注射感染斑疹伤寒的豚鼠的血小板，使人虱（Pediculus humanus）感染普氏立克次体，并研究这些虱子对其他豚鼠的再感染情况。