CaliciNet is a national norovirus outbreak surveillance network. Its database is used by public health laboratories to submit genetic sequences of norovirus strains associated with gastroenteritis outbreaks, and epidemiological data from outbreaks. The norovirus strains can be compared with other strains in the database, helping CDC link outbreaks to a common source, monitor circulating norovirus strains, and identify newly emerging norovirus strains.

CDC WONDER provides easy access to a wide range of public health data published by CDC, as well as reference materials, reports, and guidelines on health-related topics. The data is intended to help users conduct research, make decisions, set priorities, evaluate programs, and allocate resources.