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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. Polio (Oral)
  4. 1998
Polio (Oral)1998

Polio (Oral) in 1998

1,188 adverse event reports (-37% vs 1997)

Share
1,188
Reports
27
Deaths
128
Hospitalizations
563
ER Visits
35
Disabilities
← 1997 (1,889 reports)1999 (1,162 reports) →

1998 Reporting Summary

In 1998, 1,188 adverse event reports were filed for Polio (Oral) in VAERS. This represents 4.4% of all 27,089 reports for this vaccine.

Of these reports, 27 mentioned death, 128 involved hospitalization, 563 required ER visits, and 35 reported disability.

Compared to the average of 1,653 reports per year for this vaccine, 1998 was below average (-28%).

💡 What This Means

In 1998, reporting for Polio (Oral) was within typical ranges. As always, VAERS data reflects reports filed, not confirmed adverse events. Trends should be interpreted alongside vaccination volume and population health data.

All Years for Polio (Oral)

YearReportsDeathsHosp.
20045491
200373105
200212889
2001142726
20003101125
19991,16223101
1998 ← current1,18827128
19971,88966234
19962,70978306
19953,258106439
19943,572165483
19933,036141383
19923,463144444
19913,325119453
19904895574

Understanding Yearly Data

•Spikes may reflect awareness: Years with unusual activity (e.g., pandemic) often see increased reporting.
•Dose volume matters: More vaccinations given in a year naturally leads to more reports.
•Reporting lag: Some events are reported months after they occur, so recent years may be incomplete.

Quick Facts

Reports:1,188
Deaths:27
Hospitalizations:128
% of Total:4.4%
Rank (by vol.):#8 of 15 years
Avg/year:1,653

Related Pages

Polio (Oral) Overview← 1997 Reports1999 Reports →35 Years of ReportingCompare Vaccines

Data Source

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