age_group_distribution
                        Age Group Distribution of Influenza Positive
                        Tests Reported by Public Health Laboratories
cdc_basemap             Retrieve CDC U.S. Basemaps
cdcfluview              Retrieve Flu Season Data from the United States
                        Centers for Disease Control and Prevention
                        ('CDC') 'FluView' Portal
census_regions          Census Region Table
geographic_spread       State and Territorial Epidemiologists Reports
                        of Geographic Spread of Influenza
get_flu_data            Retrieves state, regional or national influenza
                        statistics from the CDC (deprecated)
get_hosp_data           Retrieves influenza hospitalization statistics
                        from the CDC (deprecated)
get_state_data          Retrieves state/territory-level influenza
                        statistics from the CDC (deprecated)
get_weekly_flu_report   Retrieves (high-level) weekly (XML) influenza
                        surveillance report from the CDC
hhs_regions             HHS Region Table
hospitalizations        Laboratory-Confirmed Influenza Hospitalizations
ili_weekly_activity_indicators
                        Retrieve weekly state-level ILI indicators
                        per-state for a given season
ilinet                  Retrieve ILINet Surveillance Data
mmwr_week               Convert a Date to an MMWR day+week+year
mmwr_week_to_date       Convert an MMWR year+week or year+week+day to a
                        Date object
mmwr_weekday            Convert a Date to an MMWR weekday
mmwrid_map              MMWR ID to Calendar Mappings
pi_mortality            Pneumonia and Influenza Mortality Surveillance
state_data_providers    Retrieve metadata about U.S. State CDC Provider
                        Data
surveillance_areas      Retrieve a list of valid sub-regions for each
                        surveillance area.
who_nrevss              Retrieve WHO/NREVSS Surveillance Data
