The number of people donating blood has dropped 40% over the last two decades, according to the Red Cross. Severe winter weather and illnesses could make an already bad situation even worse, it says.
Seven disaster-trained volunteers are working in temporary shelters providing evacuees a safe place to stay, food to eat and emotional support while preparing to expand relief efforts if needed.
The attack targeted a contractor in Switzerland that was storing the data. The Red Cross has been forced to halt a program that reunites families torn apart by violence, migration or other tragedies.