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Fact Check: Hantavirus infection is not a confirmed side effect of Pfizer’s COVID-19 vaccine
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Fact Check: Hantavirus infection is not a confirmed side effect of Pfizer’s COVID-19 vaccine

ARY News · May 9, 2026, 6:59 PM

Key takeaways

  • The narrative was also shared on X, with one post suggesting the COVID vaccine contained a hantavirus.
  • The reference to hantavirus pulmonary infection in the Pfizer document is on the fourth page ​of the nine-page appendix, titled “List of Adverse Events of Special Interest”.
  • However, this is not confirmation that the vaccine ​causes hantavirus pulmonary infection, a spokesperson for Pfizer said in an email.

Why this matters: local context for readers following news across Pakistan and the region.

Add ARY News on Google AAResize Hantavirus pulmonary infection is a disease caused by some hantaviruses, not the Pfizer-Bio NTech COVID-19 vaccine, contrary to widely shared online posts that misrepresented a document listing medical events after inoculation.

“List of Pfizer Covid jab side effects ​includes Hantavirus pulmonary infection!” said a widely shared May 7 post, opens new tab on Facebook, which shared a screenshot of ‌submissions Pfizer filed to the U.S. Food and Drug Administration in 2021 to get a biological license for its vaccine.

The narrative was also shared on X, with one post suggesting the COVID vaccine contained a hantavirus.

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