hd00:21CIRCA 1940s - A veterinarian's outdoors fills a syringe and with his assistant he injects then cows in a corral with a serum in Chile in 1949.
hd00:21CIRCA 1940s - A veterinarian, outdoors, fills a syringe and, with his assistant, he then injects cows in a corral with a serum in Chile in 1949.