780,000 feline fecal samples were examined, and 6 percent of them contained roundworm eggs. These samples were from cats in permanent homes, not strays. By contrast, only 2.9 percent of the 4 million canine fecal samples tested were positive for roundworms.
In the study, 3 percent of cats tested positive for the presence of adult, female heartworms in their hearts or lungs. These results are somewhat difficult to interpret, because feline heartworm disease is not always easy to diagnose and testing is often limited to cats that are sick. But the study does reveal is that cats need better protection against both heartworms and intestinal parasites.
Several pet medications are available that prevent heartworm disease and intestinal parasite infections in cats. Revolution and Advantage Multi are especially easy to use since both are liquid medications that only need to be applied to a cat’s skin once a month to virtually eliminate the risks posed by heartworms, roundworms and other parasites as well.