Infection is spread from person to person by direct contact with nose and throat discharges, saliva, fluid from blisters, or the stool of infected persons.
人与人直接接触导致感染蔓延，呼吸道分泌物，唾液，疱疹的脓液或患者的粪便都是潜在的传染源。
Three tests (neutralization, sedimentation and dissociation) were used for determining the secretion intensity of ABH blood substance in saliva in 135 persons with known blood groups.
本文采用中和试验，沉降反应和解离试验对135例已知血型人唾液中abh血型物质的分泌强度进行了检验，并将其分为强、中、弱三型。
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