New vaccinations against influenza and the virus that causes COVID-19 are available and arriving at physician offices and pharmacies. University of Illinois Urbana-Champaign microbiology professor Chris Brooke is a virologist who studies respiratory viruses. He sat down with News Bureau biomedical sciences editor Liz Ahlberg Touchstone to discuss what’s in the new vaccines, the best time to get them and why we need them at all.