Serum Run Documentary

The original Serum Run occurred in 1925, when a diphtheria outbreak occurred in Nome in the dead of winter. The fastest method of delivery was by dog sled from the rail line in Nenana. The 'Race To Nome' drew public attention across the nation, as 20 mushers and their teams bravely fought artic conditions to save lives in Nome.
This was not a race for pride or honor, it was a race to save lives and every effort was made to get the Serum through.
http://www.angelfire.com/ak4/kakphoto/SerumRun/SR_Story.htm
https://en.wikipedia.org/wiki/1925_serum_run_to_Nome