In 1925, Seppala was part of the nearly 700-mile relay of mushers and dog teams to get diphtheria antitoxin to Nome, Alaska, during a deadly outbreak of the disease. (AP Photo, File) “The Serum Run ...

Worse still, his stock of diphtheria antitoxin had expired ... Next year, on the 100th anniversary of the Serum Run, dog musher and Marine veteran Jonathan Hayes and polar explorer Eric Larsen ...

In 1925, Seppala was part of the nearly 700-mile relay of mushers and dog teams to get diphtheria antitoxin to Nome, Alaska, during a deadly outbreak of the disease. (AP Photo, File) “The Serum ...