July 28, 2016 8:04 am New Mobile Unit Saves Lives of Stroke Patients A new mobile stroke unit in ambulances in Colorado is saving stroke patients’ lives, allowing them to get treatment before arriving at the hospital. US & World Videos 1:10 Bay Area app monitors problems for people living with Parkinson's 1:43 Traces of bird flu virus found in 1 in 5 samples of pasteurized milk, FDA says 2:42 Mother, surrogate celebrate a perfect ending to their long journey 1:12 Watch: Why vaccines are contributing to improved public health 1:53 The Helix School in San Rafael growing with the community