{"key":"west-nile","title":"West Nile virus cases, Butte County","topic":"health","topic_label":"Health","description":"Confirmed human West Nile virus cases in Butte County every year since 2006.","rows":[{"year":2026,"cases":13,"california":378,"share":3.4,"first_week":30,"last_week":37,"fetched_at":"2026-10-26T12:20:49Z"},{"year":2025,"cases":4,"california":117,"share":3.4,"first_week":33,"last_week":42,"fetched_at":"2026-10-26T12:20:49Z"},{"year":2024,"cases":11,"california":132,"share":8.3,"first_week":32,"last_week":38,"fetched_at":"2026-10-26T12:20:49Z"},{"year":2023,"cases":18,"california":433,"share":4.2,"first_week":32,"last_week":41,"fetched_at":"2026-10-26T12:20:49Z"},{"year":2022,"cases":3,"california":209,"share":1.4,"first_week":32,"last_week":36,"fetched_at":"2026-10-26T12:20:49Z"},{"year":2021,"cases":13,"california":127,"share":10.2,"first_week":31,"last_week":39,"fetched_at":"2026-10-26T12:20:49Z"},{"year":2020,"cases":4,"california":235,"share":1.7,"first_week":35,"last_week":35,"fetched_at":"2026-10-26T12:20:49Z"},{"year":2019,"cases":5,"california":225,"share":2.2,"first_week":33,"last_week":40,"fetched_at":"2026-10-26T12:20:49Z"},{"year":2018,"cases":12,"california":217,"share":5.5,"first_week":30,"last_week":53,"fetched_at":"2026-10-26T12:20:49Z"},{"year":2017,"cases":4,"california":553,"share":0.7,"first_week":33,"last_week":53,"fetched_at":"2026-10-26T12:20:49Z"},{"year":2016,"cases":21,"california":442,"share":4.8,"first_week":33,"last_week":40,"fetched_at":"2026-10-26T12:20:49Z"},{"year":2015,"cases":53,"california":782,"share":6.8,"first_week":30,"last_week":43,"fetched_at":"2026-10-26T12:20:49Z"},{"year":2014,"cases":24,"california":801,"share":3,"first_week":30,"last_week":49,"fetched_at":"2026-10-26T12:20:49Z"},{"year":2013,"cases":24,"california":379,"share":6.3,"first_week":32,"last_week":53,"fetched_at":"2026-10-26T12:20:49Z"},{"year":2012,"cases":10,"california":479,"share":2.1,"first_week":33,"last_week":41,"fetched_at":"2026-10-26T12:20:49Z"},{"year":2011,"cases":3,"california":158,"share":1.9,"first_week":35,"last_week":40,"fetched_at":"2026-10-26T12:20:49Z"},{"year":2010,"cases":1,"california":111,"share":0.9,"first_week":33,"last_week":33,"fetched_at":"2026-10-26T12:20:49Z"},{"year":2009,"cases":2,"california":112,"share":1.8,"first_week":36,"last_week":41,"fetched_at":"2026-10-26T12:20:49Z"},{"year":2008,"cases":6,"california":445,"share":1.3,"first_week":32,"last_week":50,"fetched_at":"2026-10-26T12:20:49Z"},{"year":2007,"cases":16,"california":380,"share":4.2,"first_week":30,"last_week":37,"fetched_at":"2026-10-26T12:20:49Z"},{"year":2006,"cases":31,"california":272,"share":11.4,"first_week":33,"last_week":43,"fetched_at":"2026-10-26T12:20:49Z"}],"last_updated":"2026-10-26T12:20:49.460Z","freshness":"fresh","stale_after_hours":720,"refreshed":"every few days (CDPH updates weekly in season)","source_url":"https://data.chhs.ca.gov/dataset/west-nile-virus-cases-2006-present","licence":"CHHS Open Data terms (public, attribution requested)","page":"https://chicoflow.com/data/west-nile","csv":"https://chicoflow.com/data/west-nile.csv","generated_at":"2026-10-27T06:28:10.320Z","row_count":21,"columns":["year","cases","california","share","first_week","last_week","fetched_at"]}