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Chart: 2023-24 Influenza Season Week 25 ending June 22, 2024 Source: CDC ILINet Choropleth map of reporting core-based statistical area (CBSA). Color scale runs from minimal (dark green) to very high (dark purple) with white for insufficient data. Orange in south Gulf Florida. Yellow in south central Washington. Yellow-green in Hawaii, Mississippi, South Dakota, and California. Light green in near a dozen places across a dozen states and Puerto Rico. Otherwise dense dark green east of Mississippi. Mostly white along lower 100°W, with some shades of Dakotas into Nebraska, into eastern Texas, picking up with larger green counties further west, with patches green from New Mexico to southern California, central/north Colorado into western Montana. More green Washington into western Oregon, Nevada into Idaho and Wyoming, and bits of central California (with blank counties above and below). Description from CDC site: A Weekly Influenza Surveillance Report Prepared by the Influenza Division Outpatient Respiratory Illness Activity Map Determined by Data Reported to ILINet This system monitors visits for respiratory illness that includes fever plus a cough or sore throat, also referred to as ILI, not laboratory confirmed influenza and may capture patient visits due to other respiratory pathogens that cause similar symptoms.