The two men mark the fifth time that patients have contracted the disease while receiving a transplant.
In South America, patients are screened for Chagas' disease because it is more common than it is in the United States. In fact, no screening test for Chagas' is even licensed in the U.S.
Reduviid bugs, which often stay near substandard housing because of the cracks and holes, are what spreads the Chagas' disease.
Because the bugs usually bite people in the face, they have been referred to as the "kissing bugs."
High fever, enlargement of the spleen, liver and lymph nodes are some of the symptoms associated with Chagas' disease.
Even though most people will not get sick from the disease, it is especially dangerous for people receiving transplants because those patients are usually given immune-suppressing drugs to not have their bodies reject the new organs.
Officials with the Center for Disease Control and Prevention did state that one of the two men did not die from the disease and that the role of the disease is not known in the second man's death because an autopsy was not performed on him.
According to the CDC, one of the patients received his new organ from an individual that was born in Central America and the other patient received his new organ from an individual that traveled to Mexico.
In South America, about 12 million people have the Chagas' disease. However, only about 100,000 people in the U.S. have the disease.
