Betsy Murray went to Memorial Blood Center in St. Paul to donate two units of red blood. The two strangers then became linked when, by chance, Price was given Murray’s same type O blood.

I can only do a quarter of what I want to do. On the other hand, I’m grateful to be alive. I’m grateful for all the strangers who donated the blood that saved my life. I’ve been thinking about them ...

The two strangers then became linked when, by chance, Price was given Dr Murray’s same type O blood. Each year in Minnesota, thousands of such exchanges occur, anonymously and unnoted.