|MadSci Network: Microbiology|
Dear Richard, Unfortunatly I can not answer your question from any direct experiance, however I did pose this question to a proferssor of microbiology. He stated that there is no reason to believe phages do not also exist deep underground with bactrerial hosts. In fact this may be an ideal habitat as viruses typically are destroyed by UV light generated by the sun. Good luck with your research. Steven Korenstein Senior Environmental Scientist
Try the links in the MadSci Library for more information on Microbiology.