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# Seizure
- URL: https://www.whiteroseintelligence.com/seizure/
- Published: 1999-01-02T23:56:00.000Z
- Updated: 2025-01-03T23:32:54.000Z
- Author: Liam Sturgess
- Tags: Profiles, #docs, #disease

**Seizures** are a known [adverse event](https://www.whiteroseintelligence.com/Adverse-events-associated-with-COVID-19-vaccines) following receipt of a [COVID-19 vaccine](https://www.whiteroseintelligence.com/COVID-19-vaccine).[\[1\]](#fn1)

## History

On October 15, 2023, an analysis led by the [Food and Drug Administration](https://www.whiteroseintelligence.com/Food-and-Drug-Administration) (FDA) was published as a pre-print on medRxiv, in which "a new signal was detected for seizures/convulsions" in children 2-4 years old following receipt of the [Pfizer-BioNTech COVID-19 vaccine](https://www.whiteroseintelligence.com/Pfizer-BioNTech-COVID-19-vaccine) (BNT162b2) and 2-5 years old who received the [Moderna COVID-19 vaccine](https://www.whiteroseintelligence.com/Moderna-COVID-19-vaccine) (mRNA-1273).[\[2\]](#fn2)[\[3\]](#fn3)

## External links

- [Wikipedia](https://en.wikipedia.org/wiki/Seizure)

---

1. *5.3.6 Cumulative Analysis of Post-authorization Adverse Event Reports* (pp. 11, 21). (2021). Public Health and Medical Professionals for Transparency; Pfizer. <https://web.archive.org/web/20230714210336/https://phmpt.org/wp-content/uploads/2021/11/5.3.6-postmarketing-experience.pdf> [↩︎](#fnref1)
2. Mandavilli, A. (2023, October 24). *Covid Shots May Slightly Raise Stroke Risk in the Oldest Recipients.* New York Times. <http://archive.today/2023.10.24-193503/https://www.nytimes.com/2023/10/24/health/covid-flu-vaccine-stroke.html> [↩︎](#fnref2)
3. Lloyd, P. C., Hu, M., Shoaibi, A., Feng, Y., Wong, H. L., Smith, E. R., Amend, K. L., Kline, A., Beachler, D. C., Gruber, J. F., Mitra, M., Seeger, J. D., Harris, C., Secora, A., Obidi, J., Wang, J., Song, J., McMahill‐Walraven, C. N., Reich, C., & McEvoy, R. (2023). *Safety of Monovalent BNT162b2 (Pfizer–BioNTech), mRNA–1273 (Moderna), and NVX–CoV2373 (Novavax) COVID–19 Vaccines in US Children Aged 6 months to 17 years.* medRxiv. [https://doi.org/10.1101/2023.10.13.23296903](https://web.archive.org/web/20231026181105/https://www.medrxiv.org/content/10.1101/2023.10.13.23296903v1.full.pdf) [↩︎](#fnref3)