The American Red Cross must face part of a lawsuit claiming it attempted to thwart competition in the market for anti-contamination treatments related to blood clotting, a U.S. judge has ruled.

The American Red Cross is sounding the alarm that the United States’ blood supply has fallen by nearly 25% since early August, to what it describes as “critically low levels.” ...

The Red Cross’s donations have fallen by almost 40%, and the supply shortage has already affected hospitals as the organization was short 7,000 units the week between Christmas and New Year’s Day.