Three possibility:

來源: 禦用文人 於 2013-06-18 15:08:15 [] [舊帖] [給我悄悄話] 閱讀數 : (350 bytes)

1. 

小時侯打的結核疫苗

2.  You had old TB infection;

3. You might have active TB.  You need a complete examination to exclude active TB.
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