The the people who think companies don't want a vaccine to protect Valtrex profits:

1) Only glaxo-wellcome reaps profits for Valtrex, why wouldn't competing companies want to make a vaccine?

2) Glaxo is currently spending hundreds of millions testing a herpes vaccine, simplirix, which would eat into their Valtrex profits.

3) Valtrex's patent expires in 2009, so your whole theory is based on a false premise.