SAO PAULO, Aug 14 (Reuters) - Brazilian President Luiz Inacio Lula da Silva continues to lead Senator Flavio Bolsonaro, although the right-wing challenger has narrowed the gap with the leftist incumbent ahead of October's election, a Quaest poll showed on Friday.
In a simulated second-round runoff, Lula would receive 43% support compared with 40% for Bolsonaro. An August 5 Quaest poll had Lula leading Bolsonaro by 44% to 39%.
(Reporting by Fernando Cardoso; Editing by Mark Porter)