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Data source: VAERS (Vaccine Adverse Event Reporting System)

Data through 2026 · Updated quarterly

Built by TheDataProject.ai · © 2026 VaccineWatch

Important: VAERS accepts reports of adverse events following vaccination. For any given report, there is no certainty that the reported event was caused by the vaccine. Reports may contain information that is incomplete, inaccurate, coincidental, or unverifiable. Most reports to VAERS are voluntary, which means they are subject to biases. This data cannot be used to determine if vaccines cause or contribute to adverse events.

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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.

  1. Home
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  3. Computerised tomogram head

Computerised tomogram head

4,603 total reports46.4% serious outcomes
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Computerised tomogram head appears in 4,603 VAERS reports across all vaccines. Of these, 126 reports also mentioned death and 2,011 involved hospitalization. The severity rate (deaths + hospitalizations as a percentage of reports) is 46.4%. The top vaccines associated with this symptom are COVID-19, Flu (Trivalent), HPV (Gardasil). Remember: VAERS reports show temporal association, not causation.

4,603
Total Reports
126
Deaths
2,011
Hospitalizations
46.4
Severity Rate
% serious outcomes

💡 Key Insights

→COVID-19 accounts for 101% of all Computerised tomogram head reports — this reflects the volume of COVID-19 doses administered, not a unique safety concern.
→Severity rate of 46.4% is 5.4× the database average. This suggests Computerised tomogram head tends to appear in more serious reports, though it may also be reported alongside other serious conditions.
→2021 saw the most reports (3,004) — likely driven by the COVID-19 vaccine rollout and heightened VAERS awareness.
→Reported across 10 different vaccines — appearing in multiple vaccine types suggests it may be a general immune response.

About Computerised tomogram head Reports

Computerised tomogram head has been reported 4,603 times in VAERS from 1990 to 2026.

Of these reports, 126 were associated with death (2.74%) and 2,011 involved hospitalization.

The overall serious outcome rate (death or hospitalization) for reports mentioning Computerised tomogram head is 46.4%.

Understanding Computerised tomogram head in VAERS

•Temporal association only: These reports show Computerised tomogram head 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 Computerised tomogram head. 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.

Most Associated Vaccines

1. COVID-194,662
2. Flu (Trivalent)316
3. HPV (Gardasil)210
4. Shingles (Zostavax)170
5. Pneumococcal (PCV13)146
6. Tdap142
7. Flu (Quadrivalent)130
8. Meningococcal (MenACWY)127
9. Unknown Vaccine94
10. COVID-19 (Bivalent)94
View all vaccines →

Detailed Breakdowns

Computerised tomogram head × COVID-19 →Computerised tomogram head × Flu (Trivalent) →Computerised tomogram head × HPV (Gardasil) →

Quick Facts

Reports:4,603
Deaths:126
Hospitalizations:2,011
Mortality Rate:2.74%
Severity Rate:46.4%

Related Analysis

Most Common Symptoms Analysis →Serious Outcomes Analysis →When Do Side Effects Start? →Recovery Rates Analysis →

Explore Further

Compare with Other SymptomsRead Symptoms Analysis

Data Source

This data comes from the Vaccine Adverse Event Reporting System (VAERS), jointly managed by CDC and FDA.