Mexico have cut the number of official deaths from Swine Flu from 20 to 7 and the number of suspected deaths to 159 and are re-testing hundreds of people using stricter verification.
http://news.bbc.co.uk/2/hi/americas/8024039.stm
At the moment the susect a pig farm in the eastern part of the country as the source of the outbreak.
JJ
If its a man made weapon it's very poorly designed, the leathality is not very high. Seams to be more like normal flu