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California COVID-19 Variant Surveillance
Patient Health Records & Digital Health
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About
The prevalence of circulating SARS-CoV-2 variants throughout California is tracked by the California Department of Public Health (CDPH). This data is compiled by analysing information from the CDPH Genomic Surveillance Data and its communicable disease reporting system, CalREDIE. As viruses naturally mutate, some variants appear and then vanish, while others become common. Specialised laboratories across the state sequence the genomes from a portion of all positive COVID-19 tests to identify which variants are circulating. This process of sequencing and reporting variant results can take several days after a test is confirmed as positive. Understanding which variants are active in California is crucial for informing public health and clinical responses.
Columns
- date: The date of the data record.
- area: The geographic area, which is 'California'.
- area_type: The type of geographic area, which is 'State'.
- variant_name: The name of the specific COVID-19 variant (e.g., Alpha).
- specimens: The total number of specimens identified for a particular variant on a given date.
- percentage: The percentage of a specific variant among all sequenced specimens for a given date.
- specimens_7d_avg: The seven-day rolling average of the number of specimens for a variant.
- percentage_7d_avg: The seven-day rolling average of the percentage for a variant.
Distribution
This dataset is provided as a single tabular CSV file,
covid19_variant.csv, with a file size of approximately 417.8 kB. It contains 8 columns and a total of 7,790 records.Usage
This dataset is ideal for analysing public health trends, conducting epidemiological research, and tracking the evolution of COVID-19 variants over time in California. Researchers can model the spread of different variants, and public health officials can use it to inform policy decisions and resource allocation. It is also suitable for creating data visualisations to communicate variant prevalence to the public.
Coverage
The data covers the entire state of California. The records are provided on a daily basis, with 779 unique dates available in the dataset.
License
CC0: Public Domain
Who Can Use It
- Public Health Officials: For monitoring variant trends and guiding public health interventions.
- Epidemiologists and Researchers: To study virus mutation, transmission dynamics, and the effectiveness of health measures.
- Data Journalists and Scientists: For creating reports and visualisations to inform the public about the evolving pandemic.
- Policy Makers: To develop informed health policies based on the prevalence of specific variants.
Dataset Name Suggestions
- California COVID-19 Variant Surveillance
- SARS-CoV-2 Variant Prevalence in California
- California Daily COVID-19 Variant Tracker
- Genomic Surveillance of COVID-19 Variants in California
Attributes
Original Data Source: California COVID-19 Variant Surveillance
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