In all, ninety-one face-to-face contacts were identified, twelve of whom had no vaccinationscar, and six who had been hospital patients or visitors.
总共确认出91人是面对面接触，他们中有12人没有种痘疤痕和6人是住院病人或是访客。
2
She only had a couple of vaccination marks on her arm and a tiny scar on her knee.
她的胳膊上有一些种痘后的留痕，膝盖处有一小块疤。
3
Methods the children who were the second grade class of primary schools were investigated the history of the BCG vaccination, BCG scar, native place and conducted PPD test.