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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
  2. Vaccines
  3. Pneumococcal (Pneumovax)

Pneumococcal (Pneumovax)

PPV71,157 total reports
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Manufacturers:

Merck & Co.Unknown ManufacturerPfizer / Wyeth

Pneumococcal (Pneumovax) has 71,157 reports in VAERS spanning from 1990 to 2026. Of these reports, 305 mentioned death, 4,359 involved hospitalization, and 22,281 required emergency department visits. This vaccine is manufactured by: Merck & Co., Unknown Manufacturer, Pfizer / Wyeth. This vaccine accounts for 3.6% of all 1,983,260 reports in the VAERS database.

71,157
Total Reports
305
Deaths
4,359
Hospitalizations
22,281
ER Visits
1,111
Disabilities

About Pneumococcal (Pneumovax)

Pneumococcal (Pneumovax) has 71,157 reports in VAERS spanning from 1990 to 2026.

Of these reports, 305 mentioned death, 4,359 involved hospitalization, and 22,281 required emergency department visits.

This vaccine is manufactured by: Merck & Co., Unknown Manufacturer, Pfizer / Wyeth.

This vaccine accounts for 3.6% of all 1,983,260 reports in the VAERS database.

Reporting Rate

This vaccine averages 1,923 reports per year over 37 years of reporting (1990–2026).

Understanding These Numbers

•Reports don't prove causation. They represent temporal associations where someone experienced an event after vaccination.
•Background rates matter. Many conditions occur naturally and may coincidentally happen after vaccination.
•Reporting varies by vaccine. Newer vaccines or those in the news may have higher reporting rates due to increased awareness.

Most Reported Symptoms

1. Injection site erythema(all)
15,844
2. Injection site pain(all)
14,300
3. Pyrexia(all)
13,993
4. Injection site swelling(all)
12,487
5. Erythema(all)
12,406
6. Pain(all)
10,343
7. Pain in extremity(all)
9,175
8. Injection site warmth(all)
6,387
9. No adverse event(all)
5,733
10. Chills(all)
5,318

Top Reporting States

1. California4,918
2. Pennsylvania3,418
3. Texas3,361
4. Florida3,104
5. New York2,871
6. Michigan2,366
7. Ohio2,348
8. Washington2,234

Reports by Year

20268
2025252
2024708
2023604
20221,080
20211,682
20203,012
20193,608
20184,589
20175,458

Explore Further

⚖️ Compare PPV with OthersRead Analysis Articles

Related Analysis

📋 Side Effects Guide →The Denominator ProblemUnderstanding Reporting BiasWhen Do Side Effects Start?Death Reports Deep DiveSerious Outcomes AnalysisMost Common Symptoms

Data Source

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