CNBC - Economy

In August, consumer prices rose 3.4% over the past year while wages increased just 3.1%.

The largest outbreak, linked to shredded iceberg lettuce from Taylor Farms, sickened more than 12,000 people.

The survey's headline index hit a level of 47.8, down 7.5% from the August reading and off 13.2% from a year ago.

The all-items consumer price index was expected to rise 0.4% in August, with core, excluding food and energy, showing a 0.2% gain, according to the Dow Jones consensus.

The Bureau of Labor Statistics will release the August consumer price index report at 8:30 a.m.