Mathur G P, Gandhi K K, Mathur S, Gupta V, Bhalla M, Bhalla J N, Irshad M
Department of Pediatrics, Ganesh Shanker Vidyarathi Memorial Medical College, Kanpur.
Indian Pediatr. 1991 Sep;28(9):1017-9.
In the present study, 2.5% of 367 preschool children has HBsAg positivity. Of 11 mothers who were HBsAg positive during the third trimester of pregnancy, 4 had babies (36.4%) who developed HBsAg positivity by 2.5-3 months of age (vertical transmission). Two babies born of HBsAg negative mothers, with history of jaundice during first trimester, were HBsAg negative. All the relatives of HBsAg positive cases screened were negative for HBsAg.
在本研究中，367名学龄前儿童中有2.5%的儿童乙肝表面抗原呈阳性。在孕期第三个月乙肝表面抗原呈阳性的11名母亲中，有4名母亲的婴儿（36.4%）在2.5至3个月大时出现乙肝表面抗原阳性（垂直传播）。两名母亲乙肝表面抗原阴性但在孕早期有黄疸病史的婴儿，乙肝表面抗原呈阴性。所有接受筛查的乙肝表面抗原阳性病例的亲属乙肝表面抗原均为阴性。
