The global mpox (formerly monkeypox) vaccine market has seen accelerated growth amid rising public health concerns and increased demand for preventive solutions. According to Mordor Intelligence, the mpox vaccine market was valued at approximately USD 0.8 billion in 2023 and is projected to grow at a CAGR of over 8.5% from 2024 to 2029, driven by expanding vaccination campaigns and government stockpiling initiatives. This surge in demand has spotlighted Jynneos, the only FDA-approved vaccine for both mpox and smallpox, manufactured using modified vaccinia Ankara (MVA) virus technology. As the need for reliable supply chains intensifies, a select group of manufacturers have emerged as key players in the production and distribution of Jynneos. These companies are not only scaling up manufacturing capacity but also investing in next-generation vaccine technologies to meet global immunization goals. Below is an overview of the top nine Jynneos manufacturers shaping the current and future landscape of mpox prevention.
Top 9 Jynneos Manufacturers (2026 Audit Report)
(Ranked by Factory Capability & Trust Score)
Expert Sourcing Insights for Jynneos

H2: Market Trends for Jynneos in 2026
Based on current public data, regulatory pathways, and market dynamics, the following analysis outlines the expected market trends for Jynneos (the MVA-BN vaccine for smallpox and mpox) in the second half of 2026 (H2 2026):
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Shift from Emergency Response to Endemic Management:
- Trend: By H2 2026, mpox is expected to be managed as an endemic public health concern rather than an emergency. The acute global outbreak phase (2022-2023) will have subsided, but low-level transmission, particularly within specific high-risk communities (e.g., men who have sex with men, immunocompromised individuals), will persist.
- Impact on Jynneos: Demand will stabilize at a lower, more predictable baseline compared to the surge periods. Procurement will shift from emergency stockpiling to routine public health program planning by governments and health organizations.
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Continued Focus on Targeted Vaccination Programs:
- Trend: Public health strategies will remain focused on targeted pre-exposure prophylaxis (PrEP) and post-exposure prophylaxis (PEP) for high-risk groups, rather than broad population vaccination.
- Impact on Jynneos: The primary market will be government contracts and public health initiatives. Demand will be driven by national and regional mpox control programs, potentially including integration into sexual health clinics and outreach to vulnerable populations. Uptake may vary significantly by country based on local epidemiology and funding priorities.
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Stabilization and Potential Price Pressure:
- Trend: After the intense focus and premium pricing associated with emergency procurement, the market will move towards more stable, long-term contract pricing. Increased production capacity (Bavarian Nordic’s expanded facilities) and potential competition (though limited in the near term) could exert downward pressure on prices.
- Impact on Jynneos: While Jynneos remains the only approved non-replicating mpox vaccine in most major markets (US, EU, Canada), its revenue growth rate will likely slow. Profitability may be maintained through volume and operational efficiency, but significant price increases are unlikely. Negotiations for multi-year supply agreements will be common.
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Integration into Broader Biosecurity and Pandemic Preparedness:
- Trend: Jynneos will solidify its role as a key component of national and international biosecurity stockpiles, not just for mpox, but also as a countermeasure against potential smallpox threats (natural re-emergence or bioterrorism).
- Impact on Jynneos: A significant portion of demand will come from government stockpile replenishment and maintenance programs (e.g., US Strategic National Stockpile, EU reserves). This provides a stable, long-term revenue stream independent of current mpox case numbers. Contracts for stockpile maintenance will be crucial.
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Ongoing Regulatory and Manufacturing Developments:
- Trend: Bavarian Nordic will likely focus on maintaining regulatory compliance, potentially seeking label expansions (e.g., different dosing regimens, expanded age groups), and optimizing manufacturing yields at its new Danish and US (New Jersey) facilities.
- Impact on Jynneos: Increased manufacturing capacity ensures supply reliability for stockpiles and public health programs. Any label expansions could modestly broaden the eligible population but are unlikely to cause a major market shift in H2 2026. Supply chain stability will be a key selling point.
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Limited Direct Competition (Near-Term):
- Trend: As of 2026, ACAM2000 (a replicating vaccinia virus vaccine) remains available but carries higher contraindications and side effects, limiting its use compared to Jynneos. No new non-replicating mpox vaccines are expected to reach major markets by H2 2026.
- Impact on Jynneos: Jynneos will maintain its dominant position in the market for safer vaccination, especially for immunocompromised individuals and those with contraindications to live vaccinia. Its safety profile remains its primary competitive advantage.
Conclusion for H2 2026:
The Jynneos market in H2 2026 is expected to be characterized by stability and predictability. Demand will be driven by endemic-level public health programs targeting high-risk groups and sustained government stockpiling for biosecurity. While the explosive growth of the 2022-2023 outbreak phase will have ended, Jynneos will remain a critical public health tool with a secure, long-term market supported by government contracts and its unique safety profile. Revenue will likely be steady but lower than peak pandemic years, with potential for modest growth tied to stockpile replenishment cycles and ongoing public health initiatives.

Common Pitfalls Sourcing Jynneos: Quality and Intellectual Property Risks
Sourcing Jynneos, the smallpox and mpox vaccine developed by Bavarian Nordic, involves navigating significant challenges related to product quality and intellectual property (IP) protection. Organizations must be vigilant to avoid common pitfalls in both areas.
Quality-Related Pitfalls
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Unauthorized or Unregulated Suppliers
One of the most critical risks is procuring Jynneos from unauthorized distributors or black-market sources. These suppliers may offer counterfeit, expired, or improperly stored vaccines that do not meet safety and efficacy standards. The cold chain requirements for Jynneos (typically stored at -25°C to -15°C) are stringent, and any break can render the vaccine ineffective. -
Inadequate Cold Chain Management
Even when sourcing from legitimate channels, failure to maintain proper temperature control during transport and storage can compromise vaccine integrity. Sourcing partners without proven cold chain logistics may introduce quality risks, leading to reduced potency or complete vaccine spoilage. -
Lack of Regulatory Oversight
Sourcing Jynneos outside official regulatory pathways—such as bypassing FDA, EMA, or WHO prequalification processes—increases the risk of receiving substandard products. Purchasers must verify that suppliers are registered with relevant health authorities and that the product has valid regulatory approval for the intended market. -
Insufficient Batch Traceability
Without access to full batch documentation and traceability records, it becomes difficult to verify the origin, manufacturing date, and distribution history of the vaccine. This lack of transparency can hinder responses to recalls or adverse event investigations.
Intellectual Property-Related Pitfalls
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Unauthorized Manufacturing or Distribution
Jynneos is protected by patents and regulatory exclusivity held by Bavarian Nordic. Sourcing from manufacturers or distributors without proper licensing agreements infringes on intellectual property rights and may result in legal action. It also increases the risk of counterfeit or substandard products entering the supply chain. -
Biosimilar or Generic Misrepresentation
Unlike small-molecule drugs, vaccines like Jynneos are complex biological products that cannot be easily replicated. Any claims of “generic” or “biosimilar” versions of Jynneos are likely misleading or fraudulent, as no approved biosimilars currently exist. Sourcing such products may violate IP laws and compromise patient safety. -
Technology Transfer Without Licensing
Some organizations may attempt to replicate Jynneos through reverse engineering or unauthorized technology transfer. This not only violates patent and trade secret protections but also risks producing an ineffective or unsafe product due to the complexity of live viral vaccines. -
Procurement in IP-Vulnerable Jurisdictions
Sourcing in countries with weak IP enforcement may expose organizations to legal and reputational risks. Even unintentional procurement of IP-infringing products can lead to supply chain disruptions, litigation, or sanctions.
To mitigate these risks, organizations should source Jynneos exclusively through authorized channels, verify supplier credentials, ensure compliance with regulatory and cold chain standards, and conduct due diligence on IP rights. Collaboration with public health agencies and direct engagement with Bavarian Nordic or its licensed partners is strongly recommended.

Logistics & Compliance Guide for Jynneos
Storage Requirements
Jynneos (MVA-BN vaccine) must be stored frozen between -25°C and -15°C (-13°F to 5°F) in a standalone freezer. Avoid storing in frost-free freezers, as temperature fluctuations can compromise vaccine potency. Once thawed, the vaccine can be stored refrigerated at 2°C to 8°C (36°F to 46°F) for up to 8 weeks (56 days). Do not refreeze after thawing.
Handling and Transportation
Transport Jynneos using validated cold chain containers with continuous temperature monitoring. Ensure frozen shipments remain within the -25°C to -15°C range during transit. Use calibrated data loggers to record temperature throughout transportation. All shipments must comply with the U.S. Department of Transportation (DOT) hazardous materials regulations when applicable, though Jynneos is generally not classified as hazardous for transport.
Inventory Management
Maintain accurate inventory logs including lot numbers, expiration dates, storage locations, and movement records. Implement a first-expired, first-out (FEFO) system to minimize waste. Regularly audit inventory and storage conditions to ensure compliance with CDC and manufacturer guidelines.
Thawing Procedures
Thaw Jynneos under refrigeration (2°C to 8°C) for up to 12 hours or at room temperature (up to 25°C or 77°F) for up to 1 hour. Once thawed, gently invert the vial 10 times to re-suspend; do not shake. Use within 8 weeks when refrigerated, and discard any unused vaccine after this period or past the printed expiration date, whichever comes first.
Administration Compliance
Only administer Jynneos as a two-dose series, with doses given 4 weeks apart. Ensure patient eligibility is verified per current ACIP and CDC recommendations (e.g., individuals at high risk for monkeypox). Document all doses administered in state immunization information systems (IIS) as required.
Waste Disposal
Dispose of unused or expired Jynneos and associated sharps according to federal, state, and local regulations for medical/biohazardous waste. Follow OSHA bloodborne pathogens standards for safe handling and disposal of needles and contaminated materials.
Regulatory and Reporting Obligations
Adhere to all CDC Vaccine Storage and Handling Toolkit guidelines. Report any vaccine administration errors, adverse events, or storage excursions via VAERS (Vaccine Adverse Event Reporting System) within required timeframes. Facilities enrolled in federal vaccine programs must comply with all associated monitoring and audit requirements.
Conclusion for Sourcing Jynneos Manufacturer
After a thorough evaluation of potential manufacturers for the Jynneos vaccine, it is evident that the most reliable and compliant source remains Bavarian Nordic, the innovator and sole manufacturer of the Jynneos (also known as MVA-BN) vaccine worldwide. As a Danish biotechnology company, Bavarian Nordic holds exclusive patents, specialized production capabilities, and established regulatory approvals from key health authorities including the U.S. FDA, EMA, and WHO.
Due to the highly complex nature of the Modified Vaccinia Ankara (MVA) platform and stringent biosafety requirements for smallpox and mpox vaccine production, scaling or transferring manufacturing to alternative contract manufacturers presents significant technical, regulatory, and timeline challenges. Efforts to support global supply have been primarily addressed through Bavarian Nordic’s capacity expansion initiatives and partnerships with government agencies such as the U.S. Biomedical Advanced Research and Development Authority (BARDA).
In conclusion, sourcing Jynneos should be conducted directly through Bavarian Nordic or its authorized distributors and government stockpiles. Ensuring supply chain integrity, product authenticity, and adherence to cold chain requirements are critical. For long-term security, stakeholders should consider engagement in technology transfer discussions or regional production collaborations, though these would require substantial investment and time. For immediate needs, reliance on the established manufacturer remains the safest and most feasible option.









