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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. Measles, Mumps, Rubella & Varicella (Proquad)
  4. Respiratory tract congestion
Measles, Mumps, Rubella & Varicella (Proquad)×Respiratory tract congestion

Respiratory tract congestion Reports for Measles, Mumps, Rubella & Varicella (Proquad)

#146 most reported symptom for this vaccine

44
Reports
0
Deaths
3
Hospitalizations
0
Mortality Rate
%
6.8
Hosp. Rate
%

Respiratory tract congestion and Measles, Mumps, Rubella & Varicella (Proquad)

Respiratory tract congestion has been reported 44 times in association with Measles, Mumps, Rubella & Varicella (Proquad) vaccination in VAERS. This represents 0.2% of all 23,562 reports for this vaccine.

Among these reports, 0 mentioned death (0.00%) and 3 involved hospitalization (6.8%).

Respiratory tract congestion is the #146 most frequently reported symptom for Measles, Mumps, Rubella & Varicella (Proquad) out of 936 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 44 reports of Respiratory tract congestion after Measles, Mumps, Rubella & Varicella (Proquad) 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

Chills44 reportsMetabolic function test44 reportsComputerised tomogram normal42 reportsLaboratory test normal42 reports

Quick Facts

Reports:44
Deaths:0
Hospitalizations:3
% of Vaccine:0.2%
Rank:#146 of 936

Related Pages

Measles, Mumps, Rubella & Varicella (Proquad) 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.