>The duration of symptoms, however, may be somewhat atypical, since there have been symptoms since the beginning of april. Providing sufficient proteins and carbohydrates was not able to resolve the condition. Sorry to hear, Kris. I lose few colonies to obvious CBPV--most clear themselves spontaneously. Typically good protein and carbs will allow most colonies to clear most any sort of infection. Dr. Tom Rinderer's PhD thesis was on breeding bees resistant to CBPV. There is large variation between colonies. You may simply have a colony that is not able to clear the infection. -- Randy Oliver Grass Valley, CA www.ScientificBeekeeping.com *********************************************** The BEE-L mailing list is powered by L-Soft's renowned LISTSERV(R) list management software. For more information, go to: http://www.lsoft.com/LISTSERV-powered.html