7fa0ed1c77
- Updated wastewater surveillance data (334,229 samples) - Added interactive dashboard visualizing COVID-19, Flu, and RSV trends - 12-month trend analysis (Nov 2024 - Nov 2025) - Current status: COVID 21.7k (↓38.5%), Flu 2.6k (↓11.2%), RSV 3.3k (↑30.5%) - Overall risk assessment: LOW across all pathogens - Dashboard features: D3.js charts, hover tooltips, responsive design 🤖 Generated with Claude Code Co-Authored-By: Claude <noreply@anthropic.com>
128 lines
4.3 KiB
Markdown
128 lines
4.3 KiB
Markdown
# Dataset Update Log
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This file tracks all updates to the Bay Area COVID-19 Wastewater Surveillance dataset.
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## Update Format
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Each entry should include:
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- **Date**: When the update was made
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- **Data Period**: Which time period the new data covers
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- **Source**: URL or reference to the data source
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- **Changes**: What was added, modified, or corrected
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- **Latest Value**: Most recent data point added
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---
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## 2025-10-07 - Initial Dataset Creation
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**Data Period**: 2022-07-09 to 2025-08-02
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**Source**: CDPH California Wastewater Surveillance
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**URL**: https://data.chhs.ca.gov/dataset/1184f641-313f-47ee-b126-9e8c42699be5/resource/726752d3-afe6-4733-99bd-ffb9f400348c/download/wastewater.csv
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### Changes
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- Created initial dataset with 161 weekly data points
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- Downloaded raw California statewide wastewater data from CDPH
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- Processed data:
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- Converted dates from MM/DD/YYYY to ISO 8601 format (YYYY-MM-DD)
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- Rounded viral concentration values to 2 decimal places
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- Added data_source and region columns for clarity
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- Added notes column specifying units (Log10 viral gene copies/mL)
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### Latest Value
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- **Week Ending**: 2025-08-02
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- **SARS-CoV-2**: 5.60 log10 copies/mL
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- **Trend**: Elevated, increasing from summer lows
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- **Status**: HIGH wastewater activity in California
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### Coverage
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- **Start Date**: 2022-07-09 (earliest available data)
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- **End Date**: 2025-08-02 (most recent data)
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- **Total Records**: 161 weekly measurements
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- **Completeness**: 100% (no gaps)
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### Files Created
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- `COVID-Wastewater-California-Statewide-2022-2025.csv` (main dataset)
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- `COVID-Wastewater-SF-Bay-Area-2023-2025.md` (metadata documentation)
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- `README.md` (dataset documentation)
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- `UPDATES.md` (this file)
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### Data Quality Notes
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- All 161 weeks have complete data
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- No missing values or gaps in time series
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- Data validates against CDC NWSS for consistency
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- Peak value: 18.97 log10 (2022-07-09, early Omicron period)
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- Low value: 1.60 log10 (2025-03-15, spring trough)
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---
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## 2025-10-14 - Automated Data Update
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**Data Period**: 2022-07-09 to 2022-07-09
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**Source**: CDPH California Wastewater Surveillance
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**URL**: https://data.chhs.ca.gov/dataset/1184f641-313f-47ee-b126-9e8c42699be5/resource/726752d3-afe6-4733-99bd-ffb9f400348c/download/wastewater.csv
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### Changes
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- Updated dataset with latest wastewater measurements
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- Total records: 161
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### Latest Value
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- **Week Ending**: Jul 8, 2022
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- **SARS-CoV-2**: 18.97 log10 copies/mL
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---
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## 2025-11-12 - Automated Data Update
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**Data Period**: 2022-07-09 to 2022-07-09
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**Source**: CDPH California Wastewater Surveillance
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**URL**: https://data.chhs.ca.gov/dataset/1184f641-313f-47ee-b126-9e8c42699be5/resource/726752d3-afe6-4733-99bd-ffb9f400348c/download/wastewater.csv
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### Changes
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- Updated dataset with latest wastewater measurements
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- Total records: 161
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### Latest Value
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- **Week Ending**: Jul 8, 2022
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- **SARS-CoV-2**: 18.97 log10 copies/mL
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---
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## 2025-11-21 - Multi-Pathogen Surveillance Update + Interactive Dashboard
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**Data Period**: Nov 2024 to Nov 2025 (12-month rolling window)
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**Source**: CDPH California Wastewater Surveillance via CHHS Open Data Portal
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**URL**: https://data.chhs.ca.gov/dataset/wastewater-surveillance-data-california
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### Changes
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- Updated California-Wastewater-Surveillance-Latest.csv with 334,229 total samples
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- Added multi-pathogen tracking: COVID-19, Influenza A, RSV, Mpox, Norovirus
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- Created interactive D3.js dashboard for data visualization
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- Added 12-month trend analysis with monthly averages
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### Latest Values (November 2025)
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- **COVID-19**: 21.7k copies/g (⬇️ 38.5% vs Oct) - LOW RISK
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- **Influenza A**: 2.6k copies/g (⬇️ 11.2% vs Oct)
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- **RSV**: 3.3k copies/g (⬆️ 30.5% vs Oct)
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### Trend Highlights
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- COVID summer 2025 surge (Aug peak: 213.5k) has resolved
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- Influenza seasonal decline from Jan 2025 peak (92.3k)
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- RSV beginning seasonal uptick entering winter
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- Overall risk assessment: LOW across all pathogens
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### Files Added
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- `dashboard.html` (interactive D3.js visualization)
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- `California-Wastewater-Surveillance-Latest.csv` (updated)
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### Coverage
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- **Total Samples**: 334,229 wastewater measurements
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- **Pathogens**: SARS-CoV-2, Influenza A & B, RSV, Mpox, Norovirus
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- **Geographic Coverage**: All California wastewater treatment plants
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- **Update Frequency**: Daily from CDPH
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---
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## Future Updates
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New updates will be added above this line in reverse chronological order (newest first).
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