Article (Transfusion -- March 8, 2012): The United States Trypanosoma cruzi Infection Study: Evidence for Vector-borne Transmission of the Parasite That Causes Chagas Disease Among United States Blood Donors.
The ALS Association says the average lifespan of someone diagnosed with the condition is between two and five years. More than 50 percent make it past year three. Twenty percent make it past year five. From there, the number plummets. Less than 5 percent make it past two decades.
People With Dementia Have Shortened Life Expectancies. People with Alzheimerâs disease and other forms of dementia live, on average, about four and a half years after their condition is diagnosed. This is based mainly on people in their 80s and 90s who have recently developed Alzheimerâs.