Bird Flu Update: US H5N1 News Now

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Host: Welcome to Bird Flu Update: US H5N1 News Now, your weekly briefing on the latest developments. I'm your host, bringing you the facts from the CDC, USDA, and frontline reports. Today, we're covering human and animal cases, agency updates, guidance changes, key research, what it means for you, and a comparison to recent weeks.

First, human cases. The CDC reports 71 confirmed H5 infections in the US since early 2024, mostly among dairy and poultry workers. The latest was November 15, according to the World Health Organization: a fatal H5N5 case in Washington State, the first of this subtype globally and the first US human case since February. The patient had underlying conditions, developed fever in late October, and died November 21. No human-to-human transmission detected. CDC surveillance through week 50 ending December 13 shows no new H5 positives in routine flu testing, with over 21,300 people monitored post-exposure and 64 cases found via targeted efforts.

On animals, USDA confirmed a new H5N1 spillover in a Wisconsin dairy herd on December 14, genotype D1.1 from wildlife, separate from earlier Nevada and Arizona events, per CIDRAP. No linked herds. Wild bird detections continue: Montana's Big Horn County on December 10, Georgia's Cobb on December 8, Pennsylvania's Northampton twice on December 11, via USDA APHIS. Poultry outbreaks hit 108 flocks in the past 30 days across five states including North Dakota commercial and backyard in Washington, Wyoming, West Virginia, affecting 1.16 million birds.

Agency updates this week: USDA's National Milk Testing Strategy, phased in since December 16 with 45 states, tests raw milk silos nationwide, catching pre-symptomatic cases like in Nevada. No consumer milk or beef safety risks; FDA tests confirm pasteurization works, ground beef negative, and aged raw cheese sampling ongoing.

No major guidance changes, but USDA offers biosecurity funding and milk loss compensation. California declared a dairy emergency last December; Canada tightened US cattle imports.

Research note: Genome sequencing shows no mammal-transmissibility changes. CDC streamlined H5 reporting July 7, now monthly with FluView.

For you: Risk remains low for the public. Avoid sick birds, raw milk, unpasteurized dairy. Workers: use PPE, report symptoms within 10 days. Meat and cooked milk safe.

Compared to prior weeks: Human cases flat since February's last before Washington—same 71 total. Dairy spillovers rare, this Wisconsin one isolated versus B3.13-dominant outbreaks. Poultry detections steady with migration peaks; flu season ramps but no H5 surge in week 50 virologic data.

That's your update. Stay vigilant, stay informed.

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Bird Flu Update: US H5N1 News Now

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Host: Welcome to Bird Flu Update: US H5N1 News Now, your three-minute rundown on the latest developments. I'm your host, bringing you the facts from the CDC, USDA, and frontline reports.

Since early 2024, the US has confirmed 71 human H5N1 cases, mostly from dairy herds in 41 instances and poultry operations in 24, per CDC data. The most recent was November 15, verified by CDC on November 20 as the first global H5N5 human case, in a patient exposed to backyard birds, according to WHO. No human-to-human transmission detected. Louisiana reported the first US H5 death earlier this year.

In animals, USDA's APHIS confirmed December 14 a new H5N1 spillover in a Wisconsin dairy herd, clade 2.3.4.4b genotype D1.1, separate from prior Nevada and Arizona events, with no further herds affected as of December 19. California's CDFA reported HPAI in a Placer County backyard flock on December 19. Wild bird detections continue, including recent cases in Pennsylvania on December 11 and Minnesota on December 14, via USDA APHIS.

Past week updates: CDC's streamlined reporting since July integrates H5 with routine flu data, no new human cases flagged in Week 50 FluView through December 13. USDA emphasizes biosecurity aid for producers. FDA affirms pasteurization inactivates H5N1, with ongoing silo milk testing nationwide under December orders and zero viable virus in recent retail surveys across states like California, Idaho, and Texas.

Guidance unchanged: No unusual human activity signals per CDC monitoring through November 29. FDA funds research on thermal inactivation, cheese processes, and genome-edited chickens for resistance.

Research note: GISAID trees show H5N1 circulating with genotypes like D1.3 in Ohio's March case and D1.1 in farm workers.

For you: Commercial milk remains safe thanks to pasteurization. Avoid raw milk, unpasteurized cheese, and contact with sick birds or cattle. Wear PPE if working with animals, report illnesses to health officials.

Compared to prior weeks: Human cases flat since February's last before November's outlier; animal spillovers persist but contained, unlike summer peaks in dairy states. Flu activity rises seasonally, but H5 stable.

Thanks for tuning in. Join us next week for more. This has been a Quiet Please production. For me, check out Quiet Please Dot AI.

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Bird Flu Update: US H5N1 News Now

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Welcome to Bird Flu Update: US H5N1 News Now. I'm your host, bringing you the latest on H5N1 developments in the United States. This is a 3-minute news-focused podcast.

Since 2024, the CDC reports 71 confirmed human cases nationwide, with 41 linked to dairy herds, 24 to poultry farms and culling, three from other animal exposures, and three with unknown sources. Louisiana reported the first US H5N1 human death, and overall human toll remains low with two fatalities total, according to Science Focus on December 24.

In animals, USDA's APHIS confirmed H5N1 clade 2.3.4.4b in a Wisconsin dairy herd on December 14, calling it a new spillover event distinct from earlier ones in Nevada and Arizona, per their December 19 update and CIDRAP on December 22. No additional infected dairy herds detected there. Wild bird detections include cases in Pennsylvania's Northampton County on December 11 and Minnesota's Dakota County on December 14, as listed by APHIS.

No CDC or USDA updates in the past week note new human cases. CDC streamlined H5 reporting on July 7, now monthly with routine flu data, shifting animal stats to USDA's site. CDC surveillance through November 29 shows no unusual flu activity in people.

Guidance remains steady: Pasteurization inactivates H5N1 in milk, confirmed by FDA's retail surveys with zero viable virus in 167 samples, per their ongoing investigation. USDA offers biosecurity aid and milk loss compensation for affected producers.

Research highlights include FDA-funded studies on thermal inactivation in milk, cheese processes, and genome-edited chickens for resistance, in partnership with universities like Cornell and Wisconsin-Madison.

For listeners: Risk to the public stays low—no sustained human-to-human spread. Avoid raw milk, sick birds, or cattle; cook poultry and eggs thoroughly. Dairy workers: Use PPE. Commercial milk supply is safe.

Compared to previous weeks: No new human cases or major dairy outbreaks since mid-December's Wisconsin event; steady after summer peaks. USDA notes successful containment in 2025 overall.

Thanks for tuning in. Come back next week for more. This has been a Quiet Please production. For me, check out Quiet Please Dot A I.

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Bird Flu Update: US H5N1 News Now

You’re listening to “Bird Flu Update: US H5N1 News Now.” I’m your host, and here’s where things stand with avian influenza in the United States.

Federal health officials say the overall public health risk from H5 bird flu remains low, but the virus continues to circulate in birds, some dairy cattle, and occasionally infects people. According to the Centers for Disease Control and Prevention, there have been 71 confirmed human H5 infections in the U.S. since early 2024, including two deaths. The most recent fatal case, reported by the World Health Organization in November, involved an H5N5 strain in an adult in Washington State with underlying conditions and bird exposure. WHO and CDC both report no evidence of sustained human-to-human transmission.

On the animal side, the U.S. Department of Agriculture’s Animal and Plant Health Inspection Service continues to confirm new highly pathogenic avian influenza detections in commercial and backyard flocks. USDA’s latest flock updates show new H5 outbreaks in multiple states across the Midwest and Mid-Atlantic, with hundreds of thousands of poultry affected over the past month. USDA has also reported a recent H5N1 detection in a Wisconsin dairy herd as a new spillover event from wild birds, genetically distinct from earlier cattle outbreaks in Nevada and Arizona, but officials emphasize the commercial milk supply remains safe due to pasteurization.

In wild birds, USDA surveillance is still picking up H5 detections along major migratory flyways, including recent positives in Colorado and Minnesota, underscoring that the virus remains entrenched in wildlife.

Within the past week, CDC’s flu and H5 monitoring updates indicate no unusual influenza patterns in people. CDC reports that more than 30,000 people have been monitored and over 1,200 tested after exposure to infected animals since 2024, with only sporadic H5 cases detected. CDC guidance continues to stress avoiding unprotected contact with sick or dead birds, poultry, dairy cattle, and their droppings, and recommends that exposed workers use appropriate personal protective equipment.

There have been no major shifts in national containment measures in the last few days, but USDA and state agriculture departments are maintaining strict movement controls and culling policies around infected flocks and herds. Some states, such as California, have declared their commercial poultry free of active H5N1 outbreaks while keeping ongoing surveillance of dairies and birds.

Researchers continue to study why certain H5N1 variants are better at infecting mammals. Recent academic analyses highlight that some 2.3.4.4b strains show increased ability to infect dairy cattle, but so far do not appear well adapted for efficient spread between people.

What does this mean for you? For most listeners, the immediate risk is still low. You should avoid handling sick or dead birds or livestock, and not consume raw milk or undercooked pou

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Bird Flu Update: US H5N1 News Now

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Host: Good evening, and welcome to Bird Flu Update: US H5N1 News Now. I'm your host, bringing you the latest on avian influenza developments in the United States. Today, we're covering confirmed cases, agency updates, guidance changes, key research, what it means for you, and a comparison to recent weeks.

Starting with human cases: The CDC reports no new confirmed H5N1 infections in people since their streamlined updates on July 7, 2025. Through November 29, 2025, surveillance systems show no unusual flu activity in humans, including H5 viruses. Probable cases follow updated CDC guidelines from January 2025, but none have been added recently.

In animals, USDA data via APHIS confirms ongoing detections. Wild birds saw HPAI H5 in Colorado's El Paso County from December 3 to 12, 2025, and Minnesota's Ramsey County over the same period. CIDRAP notes 108 flocks affected in the past 30 days across five states, including 44 commercial and 64 backyard, impacting 1.16 million birds. Dairy cattle outbreaks continue, with AVMA reporting new cases in Nevada and Arizona identified via silo milk testing under the National Milk Testing Strategy, which ramped up December 16, 2025, now involving 45 states.

From the past week: CDC's H5 page, last updated post-July, integrates bird flu into routine flu reports, dropping monthly animal data from their site to USDA's. USDA's NMTS requires raw milk silo samples nationwide, complementing earlier orders, with positive herds mandated to report. AVMA's December 16 update highlights California's emergency declaration from December 2024 still aiding responses. No major new USDA or CDC alerts this week, but FDA emphasizes pasteurization's effectiveness.

Guidance and containment: USDA offers biosecurity funding and milk loss compensation for affected producers. A second federal order since December 6, 2024, mandates silo testing. Canada tightened US dairy cattle imports.

Research highlights: FDA funds thermal inactivation studies with Cornell and NIH partners on non-standard pasteurization in milk, plus cheese aging inactivation and raw milk waste disposal. They're exploring genome-edited chickens at University of Wisconsin-Madison for H5N1 resistance. Their August 2024 retail dairy survey of 167 samples found no viable virus, reinforcing pasteurization safety, per Journal of Food Protection.

For listeners: The commercial milk supply remains safe due to pasteurization inactivating H5N1, as confirmed by FDA, USDA, and CDC testing. Avoid raw milk, sick birds, or unpasteurized dairy. Farm workers: Use PPE and report symptoms. No human-to-human spread detected; risk to public is low.

Compared to previous weeks: Outbreaks persist in poultry and dairy but at lower intensity than peak 2024-early 2025, with successful containment per recent reports. Flock losses are down from millions earlier, and NMTS caught pre-symptomatic cases, unlike prior surges. Hum

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Bird Flu Update: US H5N1 News Now

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Welcome to Bird Flu Update: US H5N1 News Now. I'm your host, bringing you the latest on avian influenza developments in the United States. This is a 3-minute news-focused podcast.

Starting with human cases: The CDC reports a national total of 71 confirmed H5N1 infections since 2024, with 41 linked to dairy herds, 24 from poultry farms and culling, three from other animal exposures, and three with unknown sources. CDC's FluView for week 50, ending December 13, confirms no new human cases this week, matching week 49's report with zero additions.

In animals, USDA data shows ongoing detections, including wild birds in Colorado's El Paso County on December 3 and Minnesota's Ramsey County on December 3. Dairy cattle outbreaks continue under the National Milk Testing Strategy, with silo testing identifying cases in Nevada and Arizona before symptoms appeared. As of December 16, 45 states participate in this phased testing that began December 16.

Recent CDC and USDA updates: On July 7, CDC streamlined H5N1 reporting into routine flu data, now monthly for monitoring and testing, shifting animal stats to USDA's site. FDA reports from March show 96 of 110 raw milk cheese samples negative for H5N1, with pasteurization confirmed effective in retail surveys—no viable virus in 167 samples from summer 2024.

No changes to official guidance this week, but containment strengthens: USDA offers biosecurity funding and milk loss compensation. California declared a dairy emergency in December 2024.

Research highlights: FDA funds thermal inactivation studies with Cornell and others, plus genome-edited chickens for resistance via University of Wisconsin.

For listeners: Risk to the public remains low—no person-to-person spread. Commercial milk is safe due to pasteurization; avoid raw milk and sick birds or cattle. Farm workers: Use PPE.

Compared to prior weeks: Stable—no new human cases versus zero last two weeks. Animal detections persist but NMTS catches them early, unlike earlier 2025 peaks when outbreaks surged in poultry and dairy.

The US has successfully contained major 2025 outbreaks, per recent reports.

Thanks for tuning in—come back next week for more. This has been a Quiet Please production. For me, check out Quiet Please Dot A I.

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This is “Bird Flu Update: US H5N1 News Now.”

I’m your host, and for the next three minutes we’re looking at the latest on bird flu in the United States.

The Centers for Disease Control and Prevention reports that since 2024 there have been 71 confirmed human H5 bird flu cases in the U.S., most linked to dairy herds and poultry operations. CDC continues to say the risk to the general public remains low, with no sustained person‑to‑person transmission identified.

Within the past week, CDC’s routine influenza updates have folded H5 tracking into their regular FluView reporting, reflecting a move from crisis-style alerts to ongoing surveillance. New human infections continue to be rare, clustered among people with direct, unprotected exposure to infected animals, especially dairy cattle and poultry.

On the animal side, the U.S. Department of Agriculture’s Animal and Plant Health Inspection Service is still confirming highly pathogenic avian influenza in wild birds and poultry flocks across several regions, with recent detections reported in states including Colorado and Minnesota. USDA notes that outbreaks in commercial and backyard flocks are ongoing, with culling and movement controls used to contain spread.

In dairy cattle, USDA and the Food and Drug Administration say the multistate H5N1 outbreak first identified in 2024 is still being closely monitored in affected herds. FDA’s latest updates reaffirm that pasteurization effectively inactivates H5N1 in milk, and multiple rounds of testing of retail dairy products have found no viable virus. Federal agencies continue a silo milk testing program to watch for changes.

There have been no major shifts in public health guidance this week. CDC still advises that people who work with poultry or dairy cattle use personal protective equipment, avoid close contact with sick or dead animals, and report flu‑like symptoms to a healthcare provider, especially if they have eye irritation or respiratory illness after exposure. For the general public, officials stress that properly handled and cooked poultry, eggs, and pasteurized dairy products remain safe to consume.

On the research front, FDA, in collaboration with universities and federal labs, is running new studies on how heat and food processing inactivate H5N1 in milk, and exploring longer‑term tools such as breeding or gene‑editing strategies to make poultry more resistant to avian influenza. Public health agencies are also refining vaccines and antivirals in case wider human spread ever emerges.

So what does all this mean for you? If you do not work around birds or livestock, your day‑to‑day risk remains low. Staying informed, getting your seasonal flu shot, and avoiding contact with sick or dead wild birds or mammals are still the key recommendations. If you keep backyard poultry, follow state guidance on biosecurity and report unusual illness or sudden deaths in your flock.

Compared with previous weeks, the U.S. situation is relatively stable:

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Bird Flu Update: US H5N1 News Now

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Host: Welcome to Bird Flu Update: US H5N1 News Now, your three-minute rundown on the latest developments. Im your host, bringing you the facts from CDC, USDA, and WHO reports.

First, human cases: CDC data shows 71 confirmed H5 bird flu infections in the US since early 2024. The most recent was on November 15, 2025, in a case verified as H5N5 by CDC sequencing on November 20the first human H5N5 globally and the first US case since February 2025, per WHO. This brings the tally to 41 linked to dairy herds, 24 from poultry farms, three from other animals, and three unknown. Louisianas 2024 death remains the only US fatality. No person-to-person spread detected; CDC assesses general public risk as low.

In animals, USDA confirmed Wisconsins first dairy cattle H5N1 case on December 15, 2025, amid ongoing outbreaks. Since March 2024, 989 dairy herds in 17 states affected, plus 336 commercial and 207 backyard poultry flocks totaling over 90 million birds. Recent weeks saw 108 flocks hit, killing 1.16 million birds, per CIDRAP. Wild bird detections top 13,000 as of May 2025, USDA APHIS reports.

Past week updates: CDCs FluView for week 49, ending December 6, 2025, reports no new human cases. USDA continues raw milk silo testing from processing facilities, started late 2024, to track infected herds. No changes to CDC or USDA guidance; streamlined reporting since July 7, 2025, folds H5 into routine flu updates.

On containment and research: FDA affirms pasteurization kills H5N1 in milk, with August 2024 retail surveys finding no viable virus in 167 samples. Ongoing FDA studies with Cornell and others test thermal inactivation, cheese processes, and genome-edited chickens for resistance.

What this means for you: Risk stays low for mostavoid sick birds or cows, use PPE if working with them. Pasteurized milk and cooked products safe. Monitor symptoms like conjunctivitis or flu if exposed.

Compared to prior weeks: Human cases flat since February until Novembers outlier; dairy outbreaks grow steadily, with Wisconsins new hit versus none last week. Poultry losses persist but no surge.

Stay informed, wash hands, cook poultry thoroughly.

Thanks for tuning in. Come back next week for more. This has been a Quiet Please production. For me, check out Quiet Please Dot AI.

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Bird Flu Update: US H5N1 News Now

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Host: Good evening, and welcome to Bird Flu Update: US H5N1 News Now. I'm your host, bringing you the latest on highly pathogenic avian influenza in the United States. CDC reports 71 confirmed human H5 cases since early 2024, with the most recent on November 15, 2025, confirmed as H5N5 by CDC sequencing on November 20, according to WHO. This marks the first human case since February 2025, linked to animal exposure with no person-to-person spread detected.

In animals, USDA confirmed Wisconsin's first dairy cattle H5N1 case on December 15, 2025, in Dodge County, per DATCP and DTN Progressive Farmer. Texas reported its first 2025 commercial poultry flock outbreak in Shelby County on December 11, with quarantine and surveillance underway, as stated by Texas A&M Veterinary Lab and state officials. HPAI persists in wild birds nationwide, per USDA APHIS updates through December 9.

From the past week, CDC's FluView for week 49, ending December 6, shows no new human H5 infections, with routine surveillance indicating low public risk and no unusual flu activity through November 29. USDA continues raw milk testing mandates from December 2024, now expanded to silos at dairy facilities amid over 700 affected herds.

No major changes to CDC or USDA guidance this week; pasteurization remains effective against H5N1 in milk, confirmed by FDA's retail surveys showing no viable virus in 167 samples as of August 2024, with ongoing thermal inactivation research at Cornell and partners.

Research highlights include FDA-funded studies on H5N1 viability in cheese and raw milk waste disposal, plus genome-edited chickens for resistance, per FDA updates.

For listeners: Risk to the general public stays low per CDC. If you work with poultry, dairy cows, or backyard flocks, wear PPE, monitor for symptoms like conjunctivitis or respiratory issues, and report sick animals. Avoid raw milk; pasteurized products are safe. No need for broad public changes.

Compared to prior weeks: Human cases flat since February's three—Nevada dairy, Ohio poultry, Wyoming backyard—per CDC February 24 update. Animal detections continue steadily, unlike surges earlier in 2025, with Wisconsin and Texas as fresh hotspots versus quieter mid-year.

Stay vigilant, but no cause for alarm. Thank you for tuning in. Come back next week for more. This has been a Quiet Please production. For me, check out Quiet Please Dot A I.

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This is “Bird Flu Update: US H5N1 News Now.”

I’m your host, and here’s what you need to know about bird flu in the United States.

First, the latest human situation. The World Health Organization reports that on November 15, U.S. health officials confirmed a new human infection with an H5 avian influenza virus, later identified as H5N5, the first human case of this subtype ever reported globally. According to WHO and the Centers for Disease Control and Prevention, this brings the total to 71 confirmed human H5 infections in the U.S. since early 2024. So far, health authorities say there is still no evidence of sustained person‑to‑person spread, and the overall risk to the general public remains low.

Most U.S. human cases continue to be linked to direct exposure to infected animals, especially dairy cattle and poultry. CDC data show the majority of patients are farm workers or people involved in culling or caring for sick animals, not community contacts.

Now to animals. The U.S. Department of Agriculture’s Animal and Plant Health Inspection Service continues to report new detections of highly pathogenic avian influenza in commercial poultry and backyard flocks, with activity concentrated in the Midwest and parts of the West. In commercial operations, Indiana remains a hotspot, with repeated outbreaks in turkey and duck facilities. At the same time, USDA maps show ongoing detections in wild birds across more than 50 jurisdictions, underscoring that the virus remains widespread in wildlife reservoirs.

In cattle, USDA and FDA say the multistate outbreak of H5N1 in dairy herds that began in 2024 is still under active investigation, though the pace of new herd detections has slowed compared with earlier this year. Federal agencies stress that infected cows are being removed from the milk supply and that milk from sick animals is not allowed to enter commerce.

Recent guidance updates: CDC has streamlined H5 data into its regular FluView reporting but emphasizes that any new human cases will be reported promptly. The agency continues to advise people who work with poultry or dairy cattle to use personal protective equipment, avoid direct contact with sick or dead birds or mammals, and report respiratory or eye symptoms after exposure. USDA maintains testing and movement controls for affected poultry flocks, and states may add their own restrictions on live bird markets and shows.

On the research front, the Food and Drug Administration reports that multiple rounds of testing of retail dairy products have found no viable H5N1 virus in pasteurized milk, cheese, butter, or ice cream. Those findings support earlier evidence that standard pasteurization effectively inactivates the virus in the commercial milk supply.

What does this mean for you? For most listeners, the immediate risk remains low. You can reduce your risk by avoiding contact with sick or dead birds and mammals, cooking poultry, eggs, and meat thoroughly, and consuming only pasteurized da

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