Hi Karla,
My daughter, Anna, was CMV negative and her donor was CMV positive. Right after transplant they gave her some meds by IV for this, then a scheduled IV of ??? can't recall the name for a total of 6 doses spaced apart. She was done with the IV meds. by the end of Nov. (transplant was on July 25). The IV run time was usually about 2hrs but it ran for 3 one time. She was on oral during this time as well, Mmmm, Valcyte, for the first year. All this time they checked her blood work for CMV. At the end of her first year they changed her from Valcyte to Vancyclovir. She was lucky, that she never(knock on wood here) got CMV. We know a guy that got his double lung in March '07, same thing as Anna, he was -, donor was +, same treatment, same transplant center even, he did have a bout with CMV, once or twice. I think he's not gotten it again after his first year. I could ask him if you like.
I'm sorry I can't offer up any real help, but I thought you might like to know what my daughter's regimen was. All I really remember about CMV is that alot of people can be CMV+ and it's not any big deal, it still isn't too big a deal with transplant not enough to render the organs unusable, and it's not an issue when both the recipient and donor are CMV +. The "problem" can arise because of the suppressed immune system and you get CMV. Other than getting treated for it, I never asked any further questions, like if it keeps coming back.
I hope they get on top of it and are able to keep you from getting it again. I know sitting around getting an IV that takes 6 hrs is a pain in the neck. How long ago was your transplant?