The American Heartworm Society and Companion Animal Parasite Council (CAPC) are reporting that the warm winter has brought on perfect conditions for extremely high parasite populations in Texas. Heartworm isn't the only immediate concern. Fleas, hookworm and roundworm all may pose problems as well. American Heartworm Society President Wallace E. Graham Jr., DVM, of Wooldridge Creek Animal Hospital in Corpus Christi, Texas, has already had to perform a blood transfusion on a dog with flea-bite anemia. "Veterinarians are likely to see increased traffic in clinics," he says.