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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. FLUX(H1N1)
  4. Throat tightness
FLUX(H1N1)×Throat tightness

Throat tightness Reports for FLUX(H1N1)

#103 most reported symptom for this vaccine

20
Reports
1
Deaths
1
Hospitalizations
5
Mortality Rate
%
5
Hosp. Rate
%

Throat tightness and FLUX(H1N1)

Throat tightness has been reported 20 times in association with FLUX(H1N1) vaccination in VAERS.

Among these reports, 1 mentioned death (5.00%) and 1 involved hospitalization (5.0%).

Throat tightness is the #103 most frequently reported symptom for FLUX(H1N1) out of 521 total symptoms.

Disclaimer: VAERS reports describe events that occurred after vaccination but do not establish that the vaccine caused the event. Many reported symptoms may be coincidental or related to underlying conditions.

What This Means

Seeing 20 reports of Throat tightness after FLUX(H1N1) vaccination may seem alarming, but context is critical.

The 5.00% mortality rate among these reports is elevated, but this reflects the severity of the condition itself rather than vaccine causation.

Important Context

•Association, not causation: These reports show Throat tightness occurred after vaccination, not that the vaccine caused it.
•Background rates: Throat tightness may occur naturally at baseline rates in the population, unrelated to vaccination.
•Anyone can report: VAERS accepts reports from anyone — patients, parents, healthcare providers — without requiring medical verification.
•Denominator missing: VAERS counts reports, not rates per dose. Without knowing how many doses were given, raw counts can be misleading. Learn more →

Similarly Ranked Symptoms

Balance disorder21 reportsHypersensitivity20 reportsNasopharyngitis20 reportsPharyngeal oedema20 reports

Quick Facts

Reports:20
Deaths:1
Hospitalizations:1
% of Vaccine:—%
Rank:#103 of 521

Related Pages

FLUX(H1N1) OverviewThroat tightness (All Vaccines)Why Raw Numbers MisleadTop Symptoms Analysis

Data Source

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