Weekly RSV Vaccination Coverage Estimates for High-Risk Adults

Weekly estimates track RSV vaccination coverage and intent among adults aged 75+ and high-risk adults aged 50-74. Data originates from the National Immunization Survey - Fall Respiratory Virus Module (NIS-FRVM), a random-digit-dial cellular telephone survey. The dataset was last updated in March 2026.

Use Cases

• Analyze weekly trends in vaccination coverage (`Week_Ending`) for different `Age Group` and `Demographic Level` categories.
• Compare vaccination estimates (`Comparison Group 1 Estimate`, `Comparison Group 2 Estimate`) and their statistical significance (`Significant at 95 pct`) between demographic groups.
• Assess the magnitude and confidence intervals (`Difference Estimate Lower 95 CI`, `Difference Estimate Upper 95 CI`) of coverage differences (`Estimate Difference`) between jurisdictions.
• Monitor vaccination intent and coverage changes following the 2024 and 2025 ACIP recommendation updates for adults 75+ and high-risk adults 50-74.

Strengths

• Data is updated weekly, providing near-real-time surveillance of vaccination trends.
• Estimates are stratified by multiple dimensions including `Age Group`, `Demographic Level`, and jurisdiction.
• Includes statistical measures like confidence intervals and significance flags for robust comparison.

Limitations

• Sample size and row count are unknown, limiting assessment of statistical power.
• Data lags a few days behind the primary CDC Respiratory Illnesses Data Channel.
• Coverage is limited to the United States and its jurisdictions.

Provenance

Source

Centers for Disease Control and Prevention (CDC) via data.cdc.gov.

Collection Method

Estimates calculated from the National Immunization Survey - Fall Respiratory Virus Module (NIS-FRVM), a random-digit-dial cellular telephone survey.

Time Range

Weekly data; specific start date unknown.

Freshness

Weekly updates, last updated 2026-03-04.

Geography

United States, with breakdown by jurisdiction.