Skip to main content
VaccineWatch
VaccinesSymptomsStatesAnalysisToolsDashboardCompare

VaccineWatch

Transparent access to VAERS data for informed decision-making. We present the data as-is, with appropriate context and disclaimers.

Explore Data

  • Vaccines
  • Symptoms
  • Manufacturers
  • States
  • Dashboard
  • Compare Tool
  • Search

Deep Dives

  • The Denominator Problem
  • Onset Timing
  • Lot Number Analysis
  • COVID Impact
  • Myocarditis
  • Death Reports
  • Interactive Tools
  • All 23 Articles →

Resources

  • About
  • Methodology
  • FAQ
  • Glossary
  • Side Effects Guide
  • Vaccine Schedule
  • Vaccine Safety
  • Safety Timeline
  • Adverse Events
  • Is VAERS Reliable?
  • Report an Event
  • Disclaimer
  • VAERS Official Site ↗

Sister Sites

  • OpenMedicaid
  • OpenFeds
  • OpenSpending
  • OpenMedicare
  • OpenLobby
  • TheDataProject.ai

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.

⚠️

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. Meningococcal Conjugate (Menactra)
  4. C-reactive protein increased
Meningococcal Conjugate (Menactra)×C-reactive protein increased

C-reactive protein increased Reports for Meningococcal Conjugate (Menactra)

#203 most reported symptom for this vaccine

94
Reports
0
Deaths
51
Hospitalizations
0
Mortality Rate
%
54.3
Hosp. Rate
%

C-reactive protein increased and Meningococcal Conjugate (Menactra)

C-reactive protein increased has been reported 94 times in association with Meningococcal Conjugate (Menactra) vaccination in VAERS. This represents 0.3% of all 36,149 reports for this vaccine.

Among these reports, 0 mentioned death (0.00%) and 51 involved hospitalization (54.3%).

C-reactive protein increased is the #203 most frequently reported symptom for Meningococcal Conjugate (Menactra) out of 1843 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 94 reports of C-reactive protein increased after Meningococcal Conjugate (Menactra) 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 C-reactive protein increased occurred after vaccination, not that the vaccine caused it.
•Background rates: C-reactive protein increased 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

Laboratory test abnormal94 reportsImmunoglobulin therapy94 reportsCSF protein increased93 reportsHyperventilation93 reports

Quick Facts

Reports:94
Deaths:0
Hospitalizations:51
% of Vaccine:0.3%
Rank:#203 of 1843

Related Pages

Meningococcal Conjugate (Menactra) OverviewC-reactive protein increased (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.