Today, another Covid-19-related biopharma company is seeing impressive gains. This time, investors are focusing on Dynavax Technologies (NASDAQ:DVAX) amid some impressive news surrounding the company’s co-developed novel coronavirus vaccine. Currently, DVAX stock is up nearly 30% on this positive news. Source: shutterstock.com/PhotobyTawat Like other vaccine makers, Dynavax has been highly volatile of late. This stock has…