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Registry Index
Updated Jan 5, 2026Infectious Control

Vaccine Safety Registry

Mpox Vaccine Safety

Institutional safety information on Mpox (JYNNEOS) vaccines. Clinical safety data, side effects, risk-based eligibility, and monitoring protocols from CDC and WHO sources.

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Clinical Overview

Professional summary

Mpox is a viral zoonotic pathology induced by the Mpox virus, an orthopoxvirus. Transmission occurs through direct contact with infectious lesions, scabs, or systemic body fluids.

Clinical presentation typically includes a progressive rash that evolves through several stages. While statistically rare, severe systemic complications can occur, necessitating high-authority immunization protocols for high-risk cohorts.

Protects against Mpox virus through live, non-replicating technology.
Recommended primarily for cohorts at elevated risk of orthopoxvirus exposure.
Demonstrated clinical efficacy and established safety profile since development.
Authorized for intradermal and subcutaneous administration protocols.

Vaccine Formulations

Module specifics & formulations

Formulation Node

JYNNEOS

Bavarian Nordic | Orthopoxvirus Protocol

  • Formulation: Live, non-replicating viral node technology.
  • Authorization: Approved for individuals 18 years and older.
  • Dual-protection: Provides cross-protective immunity against smallpox.
  • Dosing logic: 2-dose series, administered 4 weeks apart.
Prescribing Reference: Analyze intradermal vs subcutaneous administration logic on official nodes.

Clinical Triage

Eligibility & contraindications

Primary Risk Cohorts

  • Documented Mpox exposure
  • High-probability exposure risk
  • Orthopoxvirus laboratory personnel

Clinical Risk Factors

  • Close contact with symptomatic cases
  • HCPs in acute Mpox care settings
  • Active regional outbreak zones

Absolute & Relative Contraindications

  • Anaphylaxis to previous JYNNEOS dose
  • Acute febrile illness state
  • Gestational/lactation status requires shared decision-making

Adverse Events

Reported reactions & surveillance

Local Reactions

  • Injection site pain/erythema
  • Localized induration
  • Pruritus (Itching) at site

Systemic Profile

  • Generalized fatigue
  • Cephalalgia (Headache)
  • Myalgia
  • Nausea
Critical Vigilance: Clinical side effects are typically self-limiting, resolving within a 48-72 hour window post-administration.

Surveillance Analytics

Post-market surveillance metrics

2022

Crisis Validation

Millions

Doses Synchronized

High

Trial Efficacy

Institutional Surveillance

Continuous monitoring through VAERS and 2022 outbreak response data has established JYNNEOS as a safe protocol for individuals with immunocompromised profiles.

Editorial Governance

Clinical Reviewers & Authors

SK
Lead Infectious Disease Author

Dr. Simran Kohli

MBBS, MD (General Medicine), DM (Infectious Diseases)

Infectious Diseases

RG
Clinical Reviewer

Dr. Rohan Gupta

MBBS, MD (Dermatology, Venereology & Leprosy)

Dermatology

All vaccine safety monographs are authored and reviewed by credentialed medical specialists in infectious disease, immunology, and pediatrics.

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Evidence Base

Authoritative References & Clinical Citations

The clinical guidance, contraindications, and safety surveillance statistics in this monograph are synthesized directly from authoritative public health agencies, regulatory package inserts, and peer-reviewed clinical studies:

  1. 1
  2. 2
    WHO2024
    Mpox (monkeypox) vaccination guidance: interim guidance

    World Health Organization Technical Guidance Series

  3. 3
    FDA2024
    JYNNEOS (Smallpox and Mpox Vaccine, Live, Non-Replicating) Package Insert & Safety Data

    U.S. Food and Drug Administration CBER, Bavarian Nordic

Verified Source Alignment:

Authored by Dr. Simran Kohli and clinically reviewed by Dr. Rohan Gupta, in alignment with HCP Connect Clinical Reviewers & Authors Directory. Content verified against 2026 CDC ACIP and WHO safety protocols.

Content Licensing: Available for non-commercial clinical, academic, and educational reuse under CC BY-NC-ND 4.0.

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Stated Response Policy

Vaccine Safety Enquiries & Direct Response

HCP Connect welcomes clinical questions, public health inquiries, and feedback regarding our vaccine safety monographs. Our clinical editorial staff and medical reviewers actively monitor all incoming communications.

Guaranteed Enquiry Response Timeline

We commit to responding in writing to all clinical and public enquiries within 2–3 business days (guaranteed within 5 calendar days, well within the 10 calendar day international assessment standard). Urgent clinical sourcing corrections are triaged within 24 hours.

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