03-07-2008, 01:23 AM
after tx of tb till what time does ppd remains positive?????????
after tx of tb till what time does ppd remain - stefan78
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03-07-2008, 01:23 AM
after tx of tb till what time does ppd remains positive?????????
03-07-2008, 05:40 AM
anybody
03-07-2008, 05:45 AM
is not it lifelong ?
03-07-2008, 05:46 AM
noo
03-07-2008, 06:11 AM
18 months?
03-07-2008, 07:03 AM
anyone else!!!
03-07-2008, 07:52 AM
"stefna " I also think its lifelong
03-07-2008, 07:56 AM
or at least you never repeat it once its positive
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