Here's the significance: every two seconds in the US, blood and platelets are desperately needed to respond to accident and burn victim emergencies, heart surgeries and organ transplant procedures, as well as patients receiving cancer treatments.
The organization says they got 61,000 fewer donations than they needed in the last two months.
That means the Red Cross needs to collect 14,000 blood donations every day.
"Here in the Penn-Jersey Blood Services Region, we are down approximately 1,200 donations from what we need to meet our patient demand", Communications Manager Alana Mauger said.
The American Red Cross usually sees a summertime shortage of blood. A blood donor card or driver's license or two other forms of identification are required at check-in.
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Nadal is a two-time victor (2008 and 2010), while Djokovic has taken home three titles (2011, 2014 and 2015). Open. "I think it's very even when we put it all out on the line", said seven-time champion Federer.
The Independence Day holiday and summer vacation plans often impact donation numbers.
The Red Cross is calling on new donors and people who haven't given in a while to help save lives. "And I've probably given about 20 gallons of blood over time".
The Blood Bank of Delmarva is also in need of donations of all blood types, but especially O Negative, the universal blood type.
Blood donors can now save time at their next donation by using RapidPass to complete their pre-donation reading and health history questionnaire online, on the day of their donation, prior to arriving at the blood drive.
Those interested in donating can make an appointment at the redcrossblood.org or at 1-800-733-2767. The Red Cross has added about 25,000 additional appointment slots at donation centers and community blood drives across the country over the next few weeks to help accommodate an influx of donors.