The EPA will acquire commercial services for the project using a blanket purchase agreement contract, the agency said Jan. 15 in a FedBizOpps notice.
A selected vendor will search for tweets that use phrases or words such as stomach bug, nausea, diarrhea and vomiting.
Data from the social network will be used to support epidemiological studies at the Centers for Disease Control and Prevention, EPA says.
The notice says that any firm that is capable of meeting the EPA requirements described may submit a response by January 24, 2014.