Terre Haute, In. – The Versiti Blood Center of Indiana is appealing to the public for blood donations.  Winter weather and the rise in illness have significantly reduced the number of donations resulting in less than a day’s supply of critical blood types.  Type O-negative is the most needed type since it is the universal type.  Donating blood only take about an hour of your time.  To schedule an appointment to donate blood call 317-916-5150 or visit versiti.org