A concerning shortfall in blood donations last month could stress the American Red Cross blood supply. The Red Cross collected over 26,000 fewer blood donations than needed in May to meet the needs of patients.

The need for blood is constant, with someone needing a blood transfusion in the U.S. every two seconds.

Platelet donors are especially needed at this time. The public can help ensure continuity for patients by making an appointment to give blood or platelets now and in the weeks ahead.

June 14 is World Blood Donor Day, a day meant to raise awareness of the need for a safe, diverse and stable blood supply and to recognize volunteer blood donors. This is the perfect time to give, especially for those who haven’t given in a while, or who have never given before.

In thanks for taking time to help, all who come to give blood, platelets or plasma through June 30 will receive a $10 gift card by email to a merchant of their choice. Those who come to give throughout June will also be automatically entered for a chance to win a backyard theater package.

Details for both offers can be found at RedCrossBlood.org/June.

To set up a time to donate, visit RedCrossBlood.org or call 1-800-RED CROSS (1-800-733-2767).

A blood donor card or driver’s license or two other forms of identification are required at check-in. Individuals who are 17 years of age in most states (16 with parental consent where allowed by state law), weigh at least 110 pounds and are in generally good health may be eligible to donate blood. High school students and other donors 18 years of age and younger also have to meet certain height and weight requirements.