Hi cppoly,
If you click on hansacenter.com and then click on supplements (under store) it states the Virogen is designed for colds and the flu.
I remember reading a long time ago why Dr. Jernigan put some Virogen in the Borrelogen (he did this on purpose but I don't remember the reason why). Again, if you click on the hansacenter website it lists all the ingredients in both products and what they are designed to do, perhaps that may help.
Also, if I remember correctly, one is not supposed to take Lymogen unless they suspect they have Bartonella.
Hopefully Opugirl will see if she can get the reason why Dr. J. puts some Virogen in the Borrelogen... gosh, it's been so many years!!
Denise