The Bill & Melinda Gates Foundation Trust has sued Brazil’s Petrobras (PETR4.SA)(PBR.N) to recoup stock losses stemming from a corruption scandal at the state-run oil company. According to a complaint filed late Thursday night in federal court in Manhattan, Petrobras’ “pervasive bribery and money laundering scheme” caused the trust and another plaintiff, WGI Emerging Markets Fund LLC, to lose tens of millions of dollars by investing in the company. Petrobras, whose formal name is Petroleo Brasileiro SA, is facing a slew of U.S.