Here are the basics about how U-Pass works: 1  Your U-Pass provides you unlimited rides on the CTA during your enrollment as a full-time student in a participating institution.
A: It can only be passed on by mosquitoes. Itâs a specific parasite that only affects dogs and cats and ferrets and other mammals. In rare cases, heartworms have infected people, but it does not complete its life cycle. The heartworm will migrate to the lung and cause a round lesion that looks like a tumor.
Adult worms can live up to 7 years in the dog. In cats, adult worms can develop, but they cannot reproduce; they take about 9 months to mature, and they tend to live only a year or two. However, adult heartworms are about a foot long, so it only takes 1 or 2 to fill up a cat's tiny heart and cause serious problems.