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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. Smallpox + Monkeypox (Jynneos)
  4. Respiratory tract congestion
Smallpox + Monkeypox (Jynneos)×Respiratory tract congestion

Respiratory tract congestion Reports for Smallpox + Monkeypox (Jynneos)

#166 most reported symptom for this vaccine

5
Reports
0
Deaths
0
Hospitalizations
0
Mortality Rate
%
0
Hosp. Rate
%

Respiratory tract congestion and Smallpox + Monkeypox (Jynneos)

Respiratory tract congestion has been reported 5 times in association with Smallpox + Monkeypox (Jynneos) vaccination in VAERS. This represents 0.2% of all 2,292 reports for this vaccine.

Among these reports, 0 mentioned death (0.00%) and 0 involved hospitalization (0.0%).

Respiratory tract congestion is the #166 most frequently reported symptom for Smallpox + Monkeypox (Jynneos) out of 283 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 5 reports of Respiratory tract congestion after Smallpox + Monkeypox (Jynneos) vaccination may seem alarming, but context is critical.

The mortality rate among these reports is very low at 0.00%, suggesting most cases are non-fatal.

Important Context

•Association, not causation: These reports show Respiratory tract congestion occurred after vaccination, not that the vaccine caused it.
•Background rates: Respiratory tract congestion 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

Viral test5 reportsMobility decreased5 reportsInjection site cellulitis5 reportsThroat irritation5 reports

Quick Facts

Reports:5
Deaths:0
Hospitalizations:0
% of Vaccine:0.2%
Rank:#166 of 283

Related Pages

Smallpox + Monkeypox (Jynneos) OverviewRespiratory tract congestion (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.