Site work is underway for a vaccine manufacturing facility in a Dartmouth, Mass., business park, set to develop new vaccines for COVID-19 and other infectious diseases.

President Biden's vaccine mandate has left many businesses, including in construction, uncertain about what's next. But legal experts say there are ways to prepare.

In November we asked for thoughts from people who work in the industry and from employers about the challenges posed by vaccination. Would people get the vaccine? Could employers insist on it?