HOUSTON – Just like the rest of Houston, METRO is seeing a post-holiday-season spike in employees testing positive for the coronavirus. In the middle of the bustling METRO hub in downtown Houston, you will find Lena Heller who wants to help keep the community safe. Since March of last year, 475 of the roughly 4,000 METRO employees have tested positive. AdOf all the positive cases, 228 of the employees had no contact with the public. Meanwhile, METRO wants its riders to know if they’ve been on a bus or train with a coronavirus-positive rider.