11.   Of those, one makes animal vaccines while the other is a biological research lab.

12.   The anthrax strain was originally isolated by Max Sterne, a South African, and has been used to make animal vaccine because it is safe to work with.

13.   The strain has been used for decades to make animal vaccine, experts said.

14.   They did not say whether Mullah Qari Abdullah showed a specific interest in anthrax, and the scientists insisted their work was aimed purely at developing animal vaccines.