Pfizer Inc. said it's making "important advances" in the drug company's battle against the coronavirus. The New York-based pharmaceutical giant (NYSE: PFE) said its researchers and scientists "have been relentlessly working" to find a treatment for coronavirus, as well as working on a vaccine to prevent it. "We are facing this public health challenge head on by collaborating with industry partners and academic institutions to develop potential novel approaches to prevent and treat COVID-19.