A blood emergency has been declared across New York as hospitals face critically low blood supplies heading into one of the busiest times of the year for trauma cases.

According to officials with the New York Blood Center and New Jersey Blood Services, the region’s blood inventory has dropped to less than a two-day supply overall, while Type O blood is now sitting at less than a one-day supply.

Healthcare leaders say all blood types are urgently needed.

The shortage is being blamed in part on a sharp decline in donations. Blood centers report donations are down by 15 percent, which translates to roughly 4,500 fewer donations than hospitals need to keep up with demand.

The timing couldn’t be worse.

Summer is often referred to as “trauma season” by medical professionals because of the increase in serious accidents and injuries. Car crashes, outdoor accidents, and other emergencies during the warmer months often require large amounts of blood for lifesaving treatment.

Officials are now calling on eligible donors to step up immediately to help prevent delays in critical care.

One blood donation can help save multiple lives, and centers say even a small increase in donor turnout could make a major difference right now.

If you’ve been considering donating, this is the time. Blood centers throughout New York and New Jersey are encouraging people to schedule appointments or walk in if eligible.

For more information or to find a donation center near you, visit New York Blood Center.