Blood supply sees 30-year low but only 4% of blood donors are giving for fellow Texans Sat, 07/31/2021 - 12:00am In 30 years, the blood supply has never seen such a chronic low as it has since the beginning of ...PLEASE LOG IN FOR PREMIUM CONTENT. Our website requires visitors to log in to view the best local news. Not yet a subscriber? Subscribe today! Read more about Blood supply sees 30-year low but only 4% of blood donors are giving for fellow Texans