NY1 VIDEO: In this episode of City Health Beat, NY1 health reporter Erin Billups looks at how officials are stepping up efforts to track a potentially deadly disease many don't know they have for years, even decades after infection. Also, a fight for life - diagnosed with a rare disease, a young child and his family hope someone will step forward and prove to be a life saver. And "Be Fast" - those words may help you save a loved one who is suffering from a stroke. Dr. Olajide Williams, Director of Acute Stroke Services at New York Presbyterian/Columbia University Medical Center, explains the warning signs.