Death toll from flooding in southern Brazil reaches 116 ; many are children . Officials report 10 suspected cases of potentially deadly leptospirosis . Authorities warn people to avoid mercury - contaminated food , too . More heavy rains forecast for parts of Brazil .
Death toll from flooding in southern Brazil reaches 116 ; 31 people missing . Officials report 10 suspected cases of potentially deadly leptospirosis . Authorities warn people to avoid flood-contaminated food , water . More heavy rain forecast for parts of Brazil .