From the beaches of Copacabana in Brazil to the neon bars of Shanghai, the world's largest brewer AB InBev needs to convince consumers to order more Budweiser beers and Coronas.

In its first half, AB InBev saw revenues drop 1.5% in Brazil year on year while volumes slid 2.4%. Second-quarter volumes for the group's overall South America business declined 4

Anheuser-Busch InBev (BUD) fell sharply in early trading on Thursday after the beer giant fell short of consensus revenue estimates with its second quarter earnings report. Revenue fell 2.2% year-over-year during the quarter to $15.