Andy Falk, a Pitt staff member, gives blood in the William Pitt Union during Central Blood… Andy Falk, a Pitt staff member, gives blood in the William Pitt Union during Central Blood Bank’s blood drive Tuesday.

“I come here because it’s so convenient,” Falk said, adding that the blood bank is particularly fond of his O negative, universal donor blood.

Why is it so important right now? Read tomorrow’s story to find out.