 New York, New York--Newsfile Corp. - May 14, 2021 - The Law Offices of Vincent Wong announce that a class action lawsuit has commenced in the on behalf of investors who purchased BELLUS Health Inc. BELLUS Health NASDAQ: BLU between September 5, 2019 and July 5, 2020.If you suffered a loss, contact us at the link below. There is no cost or obligation to you. 