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Important: VAERS reports alone cannot determine if a vaccine caused an adverse event. Reports may contain incomplete, inaccurate, or unverified information. Correlation does not equal causation.

Upper respiratory tract infection

2,054 total reports23.9% serious outcomes

2,054

Total Reports

Deaths

433

Hospitalizations

23.9

Severity Rate

% serious outcomes

About Upper respiratory tract infection Reports

Upper respiratory tract infection has been reported 2,054 times in VAERS from 1990 to 2026.

Of these reports, 57 were associated with death (2.78%) and 433 involved hospitalization.

The overall serious outcome rate (death or hospitalization) for reports mentioning Upper respiratory tract infection is 23.9%.

Understanding Upper respiratory tract infection in VAERS

•Temporal association only: These reports show Upper respiratory tract infection occurred after vaccination, not necessarily because of vaccination.

•Background rates matter: Many symptoms occur naturally at baseline rates in the population, unrelated to vaccination.

•Reporting variability: Medical terminology may be used differently by various healthcare providers and over time.

•Investigation needed: High-frequency reports may trigger further epidemiological studies to determine causation.

What This Data Shows

Most Associated Vaccines: The vaccines most frequently mentioned in reports with Upper respiratory tract infection. This may reflect usage patterns, not causation.

Severity Patterns: The percentage of reports that involve serious outcomes can help prioritize safety investigations.

Reporting Trends: Changes in reporting frequency over time may reflect increased awareness, media attention, or actual safety signals.