NBC Universal, Inc. At this point in the coronavirus pandemic, we all know the value in a single dose of the COVID-19 vaccine. "It’s liquid gold," said Karen Superchi, VP of patient care at Littleton Regional Hospital in Littleton, New Hampshire. Download our mobile app for iOS or Android to get alerts for local breaking news and weather. There have been stories of mad dashes to vaccination sites late in the evenings, with people trying to get one of the leftover doses at the end of the day -- it happened not long ago in Danvers, Massachusetts -- so to avoid that kind of chaos, several hospitals in New Hampshire have come up with a daily strategy.