Corporates and banks fuel gains in social and sustainability bond issuance amid the battle against the coronavirus. The coronavirus pandemic may have dampened green bond issuance in the first quarter of 2020, but it has also pushed some corporates to use proceeds from sustainability bond offerings to help fight the virus. Case in point: Pfizer. Heather Lang, executive director of sustainable finance solutions at ESG ratings firm Sustainalytics—which is being acquired by Morningstar—named Pfizer as one of the institutions using proceeds…