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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. Orthopoxvirus test positive
Smallpox + Monkeypox (Jynneos)×Orthopoxvirus test positive

Orthopoxvirus test positive Reports for Smallpox + Monkeypox (Jynneos)

#43 most reported symptom for this vaccine

29
Reports
1
Deaths
4
Hospitalizations
3.45
Mortality Rate
%
13.8
Hosp. Rate
%

Orthopoxvirus test positive and Smallpox + Monkeypox (Jynneos)

Orthopoxvirus test positive has been reported 29 times in association with Smallpox + Monkeypox (Jynneos) vaccination in VAERS. This represents 1.3% of all 2,292 reports for this vaccine.

Among these reports, 1 mentioned death (3.45%) and 4 involved hospitalization (13.8%).

Orthopoxvirus test positive is the #43 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 29 reports of Orthopoxvirus test positive after Smallpox + Monkeypox (Jynneos) vaccination may seem alarming, but context is critical.

The mortality rate of 3.45% warrants monitoring, though VAERS deaths represent temporal associations, not confirmed causal links.

Important Context

•Association, not causation: These reports show Orthopoxvirus test positive occurred after vaccination, not that the vaccine caused it.
•Background rates: Orthopoxvirus test positive 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

Injection site reaction29 reportsPallor29 reportsVomiting27 reportsChest pain27 reports

Quick Facts

Reports:29
Deaths:1
Hospitalizations:4
% of Vaccine:1.3%
Rank:#43 of 283

Related Pages

Smallpox + Monkeypox (Jynneos) OverviewOrthopoxvirus test positive (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.