Weekly COVID-19 Vaccination Coverage Differences by Demographics and Season

United States weekly estimates of COVID-19 vaccination coverage differences among adults aged 18 years and older are provided. The data is derived from the CDC's National Immunization Surveys-Fall Respiratory Virus Module, a random-digit-dial cellular telephone survey. Estimates are based on self-reported vaccination receipt and month, with weekly comparisons available across seasons.

Use Cases

• Analyze weekly differences in vaccination coverage between demographic groups using the 'Comparison_Group 1' and 'Comparison_Group 2' columns.
• Track seasonal vaccination trends over time by examining 'Current_Season_Week_Ending_Label' and 'Week_Ending' columns.
• Identify statistically significant differences in coverage using the 'Significant_at_95_pct' flag.
• Assess the magnitude and confidence of coverage differences using 'Estimate Difference', 'Difference_Estimate_Lower_95 CI', and 'Difference_Estimate_Upper_95 CI' columns.

Strengths

• Data is updated weekly, with a last update date of March 4, 2026.
• Estimates include statistical confidence intervals ('Difference_Estimate_Lower_95 CI', 'Difference_Estimate_Upper_95 CI') for assessing reliability.
• Provides comparisons across multiple seasons ('Comparison_Type') and demographic groups.

Limitations

• All vaccination data is self-reported, which may introduce bias compared to administrative records.
• Data posted on this platform is noted to be a few days behind the CDC's primary Respiratory Illnesses Data Channel.
• Specific row counts and sample sizes are unknown, limiting assessment of statistical power.

Provenance

Source

Centers for Disease Control and Prevention (CDC) via the National Immunization Surveys-Fall Respiratory Virus Module.

Collection Method

Random-digit-dial cellular telephone survey of households.

Time Range

Includes data for the 2023–24, 2024–25, and 2025–26 COVID-19 vaccine seasons.

Freshness

Weekly updates

Geography

United States