 Argentina extends 65 bln debt deadline to May 22 Brazil central bank to shower economy with money if depression Emerging economies burn through 240 bln in reserves - BofA Latams second-largest carrier Avianca files for bankruptcy Adds economists comments, updates prices throughout By Susan Mathew and Shreyashi Sanyal May 11 Reuters - Latin American currencies weakened on Monday, led by Brazils real, while the Argentine peso dipped to new lows with negotiations over a 65 billion debt restructuring proposal extended as default risk loomed. Sentiment worldwide fizzled as some countries such as South Korea and China reported a second wave of the COVID-19 disease, while the number of new cases in places such as Brazil, Russia and Mexico still remained worryingly high. 