Swine flu virus perhaps? Sorry...my bad.
![Smiler](/static/images/graemlins/icon_smile.gif)
Butcher BBQ sells a pork injection powder, which I've used for butts. I suppose it would work well with a loin as well.
Here's Chris Lilly's pork injection formula:
3/4 c apple juice
1/2 c water
1/2 cup sugar
1/4 cup salt (Kosher I presume)
2 TBSP Worcestershire
Heat to dissolve sugar and salt. Cool. Strain.