1.   As for contracting anthrax from contaminated mail, officials advise not opening any suspicious-looking mail or any mail from an unknown source.

2.   Congressional offices also were trained about handling contaminated mail, including who to contact if an office is exposed.

3.   Contaminated mail should be put in a re-sealable bag.

4.   Companies should be warned that they could have contaminated mail, she said.

5.   Five people died from anthrax after coming into contact with the contaminated mail or machines that handled it, including two postal workers in Washington, D.C.

6.   He said the peak risk period at Morgan was mid- to late September, shortly after the contaminated mail passed through.

7.   If there is more contaminated mail, it is probably in the tons of unsorted letters and packages impounded after the discovery of the letter to Daschle.

8.   In her case, as in others, the contaminated mail may have been the source.

9.   Investigators still do not know how the two women and the Florida editor were infected, although contaminated mail is suspected.

10.   Most recipients of contaminated mail should already have opened it, and no other infections have been found yet.