TUTTLINGEN – Hulking gray boxes are rolling off the production line at a factory in the southern town of Tuttlingen, ready to be shipped to the front in the next phase of Germany’s battle against the coronavirus as it became the latest country to hit the milestone of 1 million confirmed cases Friday.Man-sized freezers such as those manufactured by family-owned firm Binder GmbH could become a key part of the vast immunization program the German government is preparing to roll out when the first vaccines become available next month.That's because one of the front-runners in the race for a vaccine is BioNTech, a German company that together with U.S.