Which causes worse impact to us, contagious deadly disease or natural catastrophe such as quake or volcanic eruption?

Base on the article above, do you think human is the cause of bird flu spread?

TO Group 1- F1E1, H1E3 & H5E5
Don't forget the due date for my groups is December 12 2004 (SUNDAY ) at 4:00pm.
If you have problem regarding the completion of your reports please inform me ASAP!!
Late submission is NOT tolerable.

TO Group 2- F4E6, F6E4 & H6E2
Submission date: 2 January 2005 (SUNDAY) @ 4pm
Please start typing your questionairres so that you can distribute them by the 2nd week of this month. Time is running out.