Tiny Belgian town now at the center of a global vaccine race

The first doses of the long-awaited COVID-19 vaccine are on their way to the United Kingdom, the earliest western country to grant emergency authorization. The vaccine is manufactured by the U.S pharmaceutical giant Pfizer, but most of the 1.3 billion shots Pfizer hopes to deliver in 2021 will be produced in the tiny factory town of Puurs, Belgium. Special correspondent Lucy Hough reports.