The study find disease accounts for 46 % of deaths . Most were caused by norovirus , which is spread via contaminated water . Illnesses from salmonella , e. coli rose in 2010 . Contaminated meat and milk account for the most deaths , CDC says .
The study find disease accounts for 46 % of deaths . Most were caused by norovirus , which is spread via contaminated water . Contaminated meat and milk account for the most deaths , CDC says .