Archive for raw milk cheese safety

Wake Up Call for Dairy States: Vermont’s 100% Testing Strategy Just Crushed the Bird Flu Battle

Vermont dairy makes history! It is the First New England state to be declared HPAI-free via 100% farm testing. Market advantage is secured through unprecedented surveillance.

EXECUTIVE SUMMARY: Vermont became the first New England state declared “unaffected” by avian influenza (HPAI) after testing 100% of its 411 Grade A dairy farms, backed by USDA funding. This rigorous approach, combined with a voluntary raw milk cheese testing program, provided bulletproof evidence of herd health, securing consumer trust and market advantages. Collaborative state-federal efforts and proactive surveillance set a new industry standard, demonstrating how exceeding baseline requirements can protect high-value dairy sectors. Vermont’s success highlights the economic and reputational benefits of aggressive disease management while emphasizing ongoing biosecurity to maintain status.

KEY TAKEAWAYS:

  • 100% Testing Wins: Vermont tested all 411 Grade A farms-no sampling errors, no guesswork.
  • Niche Market Protection: Voluntary weekly raw milk cheese testing safeguarded a $80M+ artisan sector.
  • Federal-State Synergy: USDA funding covered costs; Vermont’s execution created a replicable model.
  • Market Edge: “Unaffected” status boosts buyer confidence, prevents trade disruptions.
  • Vigilance Required: Wild bird risks demand ongoing testing and biosecurity investments.
Vermont dairy HPAI status, bird flu testing dairy farms, raw milk cheese safety, 100% farm testing strategy, USDA unaffected declaration

Vermont has blown past every other New England state in the fight against Highly Pathogenic Avian Influenza (HPAI), securing the coveted USDA “unaffected” status for dairy cattle, protecting their markets while others scramble. Their secret weapon wasn’t luck – it was testing EVERY SINGLE ONE of their 411 Grade A dairy farms, creating bulletproof evidence of HPAI-free status. Got milk? Vermont knows theirs is clean. Does your state?

Why Is Your State Still Sampling When Vermont’s 100% Testing Just Rewrote the Rulebook?

Let’s be brutally honest. Most states are settling for statistical sampling or downstream testing that leaves gaping holes in their surveillance. Not Vermont. Their Agency of Agriculture, Food and Markets (VAAFM) took a radically different approach – hitting the road starting January 2, 2025, to collect bulk tank samples directly from all 411 Grade A dairy farms across the state.

Think about that. While other states are making educated guesses about their HPAI status, Vermont created absolute certainty. No sampling error. No “probably clean” statements. Just rock-solid evidence: “411 farms tested, zero HPAI detections.” When markets are nervous and buyers are skittish about HPAI, which statement would you rather have backing your milk?

Here’s the kicker – federal dollars covered the entire testing program. Vermont’s dairy farmers didn’t pay a dime for this market-protecting gold standard surveillance. So, the question isn’t whether your state can afford this level of testing. The real question is: Why aren’t your ag officials fighting to secure the same federal resources Vermont did?

“This sampling program is a first-of-its-kind system built by a team of Vermonters who wanted to bring peace of mind and protection to our dairy farmers, food processors, and cheese makers,” said E.B. Flory, VAAFM’s Dairy Section Chief. But let’s translate that: Vermont recognized a threat to their dairy industry’s reputation and moved aggressively to neutralize it before markets could punish them.

Raw Deal or Real Protection? How Vermont’s Artisan Cheese Makers Got Ahead of the Curve

This is where Vermont shows they’re playing chess while other states are playing checkers. Beyond the mandatory testing, they created something revolutionary – a weekly sampling program specifically for raw milk cheese producers with 100% voluntary participation.

Why does this matter? Cornell University research shows the HPAI virus could potentially survive the traditional 60-day aging process in some raw milk cheese varieties. No pasteurization means no kill step for the virus. For artisan cheesemakers, a massive vulnerability could devastate their premium markets.

Instead of waiting for a disaster, Vermont created a first-in-the-nation weekly testing system to verify source milk is HPAI-free before it ever touches a cheese vat. Every single Vermont raw milk cheese maker voluntarily joined the program. Every. Single. One.

What’s your state doing for its specialty producers? Are they exposing your high-value artisans or giving them the tools to prove their products’ safety? Vermont’s cheese makers now have scientific proof backing their HPAI-free claims – a powerful market advantage your producers don’t have.

Game, Set, Match: How Vermont Beat Everyone to “Unaffected” Status

Vermont’s achievement didn’t happen by accident – it came from mastering the USDA’s National Milk Testing Strategy (NMTS) faster and more thoroughly than competitors. The NMTS has five stages:

  1. National Plant Silo Monitoring – Testing processor-level milk to identify potential hot spots
  2. Determining State Status – States implement testing to identify affected herds or prove “unaffected” status
  3. Detecting and Responding in Affected States – Control measures in affected herds
  4. Demonstrating H5 Absence in Unaffected States – Continued surveillance to maintain “unaffected” status
  5. Demonstrating H5 Freedom in U.S. Dairy Cattle – Nationwide freedom from HPAI

Vermont blazed through Stage 2 into Stage 4 by implementing surveillance, obliterating baseline requirements. While industry discussions suggested needing “four rounds of monthly testing” to achieve unaffected status, Vermont’s exhaustive approach created such compelling evidence that they secured the designation after their initial testing round.

The May 9, 2025, declaration making Vermont the first New England state with “unaffected” status wasn’t just a regulatory win – it’s a market protection shield that their neighbors don’t have.

Partnerships That Work: How Vermont Built the Model Others Should Copy

Vermont’s success exposes the weakness in how most states approach federal partnerships. The USDA provided the national strategy (NMTS), testing protocols, and funding that covered all testing costs. But Vermont didn’t just check compliance boxes.

VAAFM officials personally visited all 411 Grade A operations, generating farm-specific data that left zero room for doubt about Vermont’s status. This wasn’t busy work – it was strategic market protection at a scale most states haven’t even attempted.

Is your state ag department fighting as hard for your dairy industry? Or are they meeting minimum requirements while Vermont secures a significant competitive advantage?

The raw milk cheese program further proves Vermont officials understand something fundamental: different dairy sectors need tailored approaches. Rather than forcing a one-size-fits-all surveillance model, they created specialized testing that addressed the unique risks in this high-value segment.

THE BOTTOM LINE: STOP SETTLING FOR MINIMUM STANDARDS

Vermont just threw down the gauntlet to every dairy state in America. Their achievement delivers an uncomfortable truth: comprehensive surveillance isn’t just a regulatory burden – it’s a market opportunity most states are missing. Here’s what you should demand:

Stop Just Meeting Minimums: Vermont proved that exceeding federal baselines with 100% farm testing builds unparalleled market trust. Is your state settling for statistical sampling when bulletproof certainty is available? That’s leaving money on the table.

Target Your High-Value Assets: Got raw milk or other specialized products? Vermont showed how sector-specific, proactive testing programs can protect premium markets from HPAI fears. If your state doesn’t offer targeted surveillance, your specialty producers are unnecessarily vulnerable.

Leverage Federal Dollars for State Excellence: The Feds paid for Vermont’s top-tier program. This isn’t about state budgets; it’s about state leadership having the backbone to secure these resources for producers. Is your state’s ag department fighting as aggressively for federal resources?

Prepare for What’s Next: HPAI remains in wild bird populations and isn’t disappearing. Vermont’s “unaffected” status isn’t the finish line – it’s a competitive advantage requiring continued vigilance and biosecurity. The states that maintain the strongest surveillance will continue winning in the marketplace.

The gap between minimum compliance and market leadership has never been clearer. Vermont chose leadership. What’s your state’s excuse?

Learn more:

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Raw Milk Cheese & H5N1: FDA Sampling & Cornell Study Spark Safety Debate

FDA Sampling vs. Cornell Study: What Dairy Farmers Need to Know

EXECUTIVE SUMMARY: A groundbreaking Cornell study reveals H5N1’s unexpected survival in lab-made raw cheese aged 60 days, challenging FDA safety assumptions. Meanwhile, FDA testing of 96 commercial raw cheese samples found no detectable virus, while 464 pasteurized products also tested clean. Two avian flu strains – B3.13 (cattle-poultry spread) and D1.1 (wild bird spillover) – pose distinct risks, with B3.13 causing severe illness and D1.1 triggering milder cases. Researchers highlight pH ≤5.0 and heat treatment (54°C/15 mins or 60°C/10 secs) as virus-killing solutions. The FDA’s ongoing sampling will determine if commercial cheeses harbor risks while states like New York ramp up surveillance. Farmers must balance lab findings with real-world data to protect herds and consumers.

KEY TAKEAWAYS

  1. Cornell Study Challenges Aging Safety: H5N1 survives 60 days in pH 5.8–6.6 cheeses but dies in ≤5.0 acidity.
  2. FDA Sampling: No Virus Detected: 96 raw cheese samples and 464 pasteurized products tested clean as of March 2025.
  3. Strain Safety: B3.13 vs D1.1:
    1. B3.13: Lateral spread between cattle/poultry; severe illness.
    1. D1.1: Wild bird spillover; milder symptoms.
  4. Proven Solutions: Target pH ≤5.0 or heat-treat raw milk to kill H5N1.
  5. Biosecurity Critical: Wildlife control and hygiene protocols remain frontline defenses, especially in H5N1-free states.
H5N1 raw milk cheese, Cornell H5N1 study, FDA testing dairy, avian flu dairy impact, raw milk cheese safety

While Cornell researchers reveal H5N1’s surprising survival in lab-made raw cheese, the FDA’s ongoing marketplace sampling shows no detectable virus in commercially sold aged raw cheese. This tension between lab findings and real-world results underscores the complexity of food safety in a post-avian-flu world.

Cornell’s Lab Bombshell

In a preprint study funded by the FDA and New York State, researchers spiked raw milk with H5N1 and made mini-cheeses at three pH levels (6.6, 5.8, 5.0). The results? The viable virus survived 60 days of aging in cheeses with pH 5.8–6.6 – but vanished in the most acidic (pH 5.0) batch. This directly challenges the FDA’s 1949 rule requiring raw milk cheese to age 60 days at ≤35°F (1.7°C) to kill pathogens.

But the FDA’s Marketplace Reality Check

As of March 10, 2025, the FDA has:

CategoryNumberStatus
Raw cheese samples110Collected
Raw cheese tested96Negative
Raw cheese pending14In progress
Pasteurized products464Tested clean
ParameterLab FindingsMarketplace Data
pH 6.6–5.8Virus survives agingNo positives in 96 tested samples
pH ≤5.0Virus inactivatedN/A (no commercial data)
PasteurizationInactivates virus464 products tested clean

THE STRAIN SHOWDOWN: B3.13 VS D1.1

Two avian flu strains are rewriting the rules for dairy safety – and they behave very differently.

StrainHotspotsTransmissionImpact on Cows
B3.13California, IdahoLateral spread (farm-to-farm)Severe clinical illness
D1.1Nevada, ArizonaWild bird spilloverMilder symptoms

Why This Matters

  • B3.13 acts like a cattle-poultry ping-pong ball, jumping between species and spreading rapidly.
  • D1.1 – the dominant wild bird strain – seems to land and stay, causing sporadic dairy outbreaks without farm-to-farm spread.

HEAT TREATMENT: THE VIRUS KILLER

While aging alone may fail, heat treatment emerges as a reliable solution.

ParameterTemperatureDurationEffect
Low-temperature54°C (130°F)15 minutesInactivates H5N1
High-temperature60°C (140°F)10 secondsInactivates H5N1

This data aligns with FDA recommendations for heat-treating raw milk to ensure virus inactivation.

THE CHEESE SAFETY DEBATE: WHAT FARMERS NEED TO KNOW

Raw milk cheese producers face a pH puzzle. The Cornell study shows:

  • pH 6.6–5.8: Virus survives aging.
  • pH ≤5.0: Virus dies during cheese-making.

Practical Takeaways

  1. Adjust your pH: Target ≤5.0 to kill H5N1.
  2. Heat it: Treat raw milk to 54°C (130°F) for 15 mins or 60°C (140°F) for 10 seconds.
  3. Stay vigilant: Even with these steps, biosecurity remains critical – especially in virus-free regions.

FDA’S NEXT MOVES: WHAT TO WATCH

The H5N1-cheese saga is far from over. Here’s what to watch:

  1. Final sampling results: Will the remaining 200 cheese samples turn up positive?
  2. Regulatory shifts: Could aging requirements tighten?
  3. Strain evolution: How will B3.13/D1.1 mutate?

New York’s Proactive Play

Following Cornell’s findings, New York State is:

  • Developing an updated surveillance strategy for raw milk used in cheese production
  • Testing raw milk bulk tanks during inspections
  • Coordinating with USDA, FDA, and national dairy organizations to enhance detection.

VALIDATED FINDINGS: COMMERCIAL CHEESE SURVIVAL

Cornell’s study analyzed commercial cheddar cheese inadvertently made with H5N1-contaminated milk:

ParameterValueObservation
pH5.37 ± 0.06Virus survived 60 days of aging
Aging duration60 daysInfectious virus detected at end
Viral load4.0 ± 0.58 log EID50/gConsistent infectivity throughout

This real-world validation confirms lab findings about H5N1’s persistence in pH 5.3–5.8 cheeses.

BOTTOM LINE: WHAT DAIRY FARMERS & CONSUMERS NEED TO KNOW

For Raw Cheese Producers

  • pH matters: Target ≤5.0 or heat-treat raw milk to ensure safety.
  • Biosecurity first: Wildlife control and hygiene protocols remain critical.

For Consumers

  • No confirmed risks: The FDA hasn’t detected H5N1 in 96 tested samples.
  • Check labels: Opt for pasteurized products if concerned.

For Dairy Workers

  • Protect yourself: Avoid direct contact with raw milk – splashes to eyes/mouth pose infection risks.

While the Cornell study raises red flags, real-world data mocks the alarm bells. For now:

  • Raw cheese producers: Double-check pH/heat protocols.
  • Consumers: No evidence yet to avoid raw cheese.
  • All farmers: Biosecurity isn’t optional – it’s essential.

Stay Sharp
This story’s evolving. Follow The Bullvine for updates – and keep your herd’s defenses locked tighter than a cheese aging cave.

Read more:

  1. Avian Flu Hits Nevada Dairy Cows: Industry on High Alert
    Covers Nevada’s HPAI outbreak, quarantine measures, and USDA testing programs.
  2. How H5N1 Exposed Dairy’s Vulnerability While Threatening Your Bottom Line
    Details Cornell’s research on $737,500 herd losses, rapid viral spread, and biosecurity gaps.
  3. Avian Influenza Outbreak: Latest Developments in U.S. Dairy Industry – January 22nd, 2025
    Updates on 17-state herd impacts, milk production drops, and federal response strategies.

Join the Revolution!

Join over 30,000 successful dairy professionals who rely on Bullvine Daily for their competitive edge. Delivered directly to your inbox each week, our exclusive industry insights help you make smarter decisions while saving precious hours every week. Never miss critical updates on milk production trends, breakthrough technologies, and profit-boosting strategies that top producers are already implementing. Subscribe now to transform your dairy operation’s efficiency and profitability—your future success is just one click away.

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