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Is bird flu in cattle here to stay?

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Is bird flu in cattle here to stay?

Despite assurances from the federal government that bird flu will be eradicated from the nation’s dairy cows, some experts worry the disease is here to stay.

Recently, Eric Deeble, USDA acting senior advisor for H5N1 response, said that the federal government hoped to “eliminate the disease from the dairy herd” without requiring vaccines.

Since the disease was first publicly identified in dairy cattle on March 25, there have been 129 reports of infected herds across 12 states. In the last four weeks, there has been a surge — jumping from 68 confirmed cases on May 28 to nearly twice that many as of June 25. There are no cases in California.

So far, however, the dairy industry has proved reluctant to work with state and federal governments to allow for widespread testing of herds.

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To some epidemiologists, this lack of close herd surveillance is a problem. They worry that the virus is spreading unchecked among dairy cows and other animals, and has taken up permanent residence.

David Topham, a professor of microbiology and immunology at the University of Rochester’s Center for Vaccine Biology and Immunology, said he considers H5N1 to be “endemic in animals in North America” — citing its prevalence in wild bird populations as well as its long staying power in domestic poultry.

No one knows how widespread it is in cattle, Topham said, because testing has largely targeted symptomatic cows and herds. “But I suspect the closer we look, the more we’ll find, and I don’t know if we’re going to cull our entire cattle herds and start over again.”

Topham said he understands the industry’s reluctance to permit government scientists onto farms “because we’re going to want to see everything, and we’re going to report everything that we see, and that might be bad for business. … But until we have all that information, I don’t think we will have control.”

Federal officials have announced a pilot bulk milk testing program that includes Kansas, Nebraska, New Mexico and Texas. Farmers in these states can voluntarily enroll to have bulk milk samples tested for the virus. If their samples test negative for three weeks, they will be able to move their herds across state lines without additional testing — something they are currently unable to do.

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So far, only one herd in each state has signed up.

A USDA “strike force” investigated 15 infected Michigan dairy herds as well as eight turkey flocks in early April. It worked with the state of Michigan as well as individual farmers.

The investigation was launched after local researchers identified a “spillover” event that went from infected cattle to a nearby poultry plant. The state — and farmers — wanted to know how it happened.

What the team found suggests the “control” Topham referred to may be elusive.

From surveys and observations, they found that cats and chickens were free to walk around without containment — potentially migrating between nearby dairies and poultry farms. Some of these animals had become infected; several died.

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Asked about their practices regarding isolation of newly introduced cattle, three out of 14 farms said they always isolated, another three said they never isolated, and the remainder didn’t respond.

Then there was the dumping of unpasteurized, contaminated milk into the open waste lagoons on several of the farms. And the feeding of non-pasteurized milk to calves on three farms. Or the potentially contaminated manure that was stored, composted or applied to nearby fields. In one case, a farmer reported they had sold or given away potentially contaminated manure.

Finally there was the issue of humans: On every farm, there were visitors, carcass removal companies, milk suppliers, veterinarians and employees — many of whom traveled between farms.

For instance, of the 14 dairies that reported information about their employees, three had employees that worked at other dairies, one had employees that worked at a poultry farm, and one had an employee who also worked at a swine farm. At four dairies, some of the employees were reported to have their own livestock at home.

As the authors reported, “transmission between farms is likely due to indirect epidemiological links related to normal business operations … with many of these indirect links shared between premises.”

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They noted there was no evidence to suggest waterfowl had introduced the virus to the Michigan herds.

Michael Payne, researcher and outreach coordinator at UC Davis’ School of Veterinary Medicine Western Institute for Food Safety and Security, said there was no one to blame for the lack of containment.

He said in the weeks and months before the disease was identified in cattle, researchers from across the nation scrambled to figure out what was happening to dairy cows in Texas that appeared listless and had diminished milk production.

“It’s not like people weren’t aware or concerned and trying to figure it out,” he said. And then once it was identified, and it didn’t seem to cause too much illness in cows or transfer to humans quickly, while there was urgency, the system fell into a series of “incremental” solutions — negotiated among dozens of federal and state agencies.

He and Topham agree that no one can say for sure what the virus will do — and where it will go — next.

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If it becomes endemic in cattle and is renamed “bovine influenza,” vaccines are likely to follow, as well as continuous surveillance and testing of dairy products.

Topham said that the biggest concern among epidemiologists now is how the virus will evolve as it continues to move — largely unabated and undetected — through cattle herds, resident farm animals and people.

There have been three human cases of H5N1 in U.S. dairy workers since March.

One key worry is that the virus may move with a dairy employee onto a small farm and then recombine inside a pig, dog or cat that is harboring another flu virus.

He and Payne agree that officials need to remain alert to signs that the virus is adapting in ways that could hurt humans.

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Wastewater is one way to detect the location of the virus.

As of Tuesday, data from the academic research organization WastewaterSCAN show that levels of H5 influenza have been rising in wastewater samples from a facility in Boise, Idaho.

Asked about whether the region’s health department was investigating, or if there was any idea where the H5 was coming from, Surabhi Malesha, communicable disease program manager at Central District Health in Idaho, said there was no way to know if the H5 signal was from H5N1 or another influenza subtype.

She said testing for H5 in wastewater had only recently started and therefore “there is no way to compare this data from last year or the year before, and so we don’t know what a baseline detection of H5 looks like.”

“Maybe we see H5 detections like this on a regular basis, and it is not of public health significance or importance. … How do we define normalcy when we have nothing to compare the data to?”

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She said the findings were “not a public health concern” and her agency and the state “do not need to really investigate into this, because this could be H5N1, or could be any other H5 strains, and it really does not affect the public in general.”

Dennis Nash, distinguished professor of epidemiology and executive director of City University of New York’s Institute for Implementation Science in Population Health, said that given the current situation, the wastewater sample should be considered H5N1 “until proven otherwise. The only other H5 we know about is H5N2. And a man in Mexico City just died from that.”

Nash said health officials should be trying to determine the source of the virus found in the wastewater: a nearby dairy herd, a milk processing site or raw milk that was dumped down the drain.

Idaho has reported 27 infected herds, although according to Malesha, none has been reported in the Central District.

“You want to do everything you can to prevent these types of viruses from emerging, because once they do, we don’t have a whole lot of control over them,” Topham said. “Because when the horse is out of the barn, it’s gone. So I think the question is, what do we need to do to keep this in check?”

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Very little plastic being recycled in California as state efforts falter

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Very little plastic being recycled in California as state efforts falter

California touts itself as a leader on the problem of plastic garbage, but recent developments suggest otherwise.

A new report issued by the state’s waste agency shows plastic yogurt containers, shampoo bottles and restaurant takeout trays are being recycled at rates only in the single digits.

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Polypropylene, labeled as #5 on packaging, is used for yogurt containers, margarine tubs and microwavable trays. Only 2% of it is getting recycled. Colored shampoo and detergent bottles, made from polyethylene, or #1 plastic, are getting recycled at a rate of just 5%.

Other plastics, including ones promoted as highly recyclable, such as clear polyethylene bottles, which hold some medications, or hard water bottles, are being recycled at just 16%.

No plastic in the report exceeds a recycling rate of 23%, with the majority reported in just the single digits.

Adding to this disquieting assessment, CalRecycle also just pulled back regulations that were supposed to finalize a landmark single-use plastic law known as Senate Bill 54 — a law designed to make the majority of packaging waste in the state recyclable or compostable by working with the plastic and packaging industries.

The report and delay have sparked a wide variety of reactions by those who have closely watched the law as it was written and implemented.

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The proposed regulations were regarded as friendly to industry. As a result, some are hopeful that CalRecycle’s decision to pull them back for tweaking means the agency will make the law stronger. Others say the two developments just show the state has never really been serious about plastic recycling.

“California’s SB 54 … will NEVER increase the recycling rates of these items … because cartons and plastic packaging are fundamentally not technically or economically recyclable,” said Jan Dell, the founder of Orange County-based Last Beach Cleanup, an anti-plastic organization.

Industry representatives are also expressing disappointment, saying the more delays and changes the state makes, the harder it is “for California businesses to comply with the law and implement the resulting changes,” said John Myers, a spokesman for the California Chamber of Commerce, which represents companies that will be affected.

Reports on abysmally low rates of recycling for milk cartons and polystyrene have been widely shared and known. But the newest numbers were still a grim confirmation that there are few options for dealing with these materials.

According to one state analysis, 2.9 million tons of single-use plastic and 171.4 billion single-use plastic components were sold, offered for sale or distributed in California in 2023.

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Single-use plastics and plastic waste more broadly are considered a growing environmental and health problem. In recent decades, plastic waste has overwhelmed waterways and oceans, sickening marine life and threatening human health.

Last spring, the Newsom administration was accused of neutering the regulations that CalRecycle had initially proposed to implement the law. The changes excluded all packaging material related to produce, meat, dairy products, dog food, toothpaste, condoms, shampoo and cereal boxes, among other products. These are all products that might fall under the purview of the U.S. Food and Drug Administration and the U.S. Department of Agriculture.

It also opened the door to “alternative” recycling, such as chemical recycling, which environmentalists say is polluting, and was banned in the language of the law.

The waste agency then submitted those draft regulations to the Office of Administrative Law, whose lawyers and staff review proposed regulations to ensure they are “clear, necessary, legally valid, and available to the public” before finalizing them. They were set to release their determination on Friday; CalRecycle pulled the regulations back before the office issued its determination.

Neither the law office nor governor’s office responded to requests for comment.

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Melanie Turner, CalRecycle’s spokeswoman, said the agency withdrew its proposed regulations “to make changes … to improve clarity and support successful implementation of the law,” and its revisions were focused on areas that dealt with “food and agricultural commodities.”

California State Sen. Ben Allen (D-Santa Monica), author of the original legislation, called the delay “entirely avoidable” in a statement, but said it would allow CalRecycle an “opportunity to ensure the regulations truly follow the law as it was signed.”

He urged the waste agency and Newsom’s administration not to “allow broad, sweeping exemptions that would undermine the program and increase costs for ratepayers.”

Critics of the watered-down regulations, such as Anja Brandon, the director of plastics policy for the Ocean Conservancy, said she wasn’t surprised by the withdrawal.

The proposed regulations “would have gone beyond CalRecycle’s authority by creating a sweeping categorical exclusion for food and agricultural packaging — effectively a loophole that would have allowed producers to continue putting vast amounts of plastic packaging into the marketplace, completely undermining SB 54’s goals and success,” she said in a text message.

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Turner said CalRecycle will conduct a 15-day comment period — although when that begins has not yet been divulged.

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Cancer survival rates soar nationwide, but L.A. doctors warn cultural and educational barriers leave some behind

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Cancer survival rates soar nationwide, but L.A. doctors warn cultural and educational barriers leave some behind

The American Cancer Society’s 2026 Cancer Statistics report, released Tuesday, marks a major milestone for U.S. cancer survival rates. For the first time, the annual report shows that 70% of Americans diagnosed with cancer can expect to live at least five years, compared with just 49% in the mid-1970s.

The new findings, based on data from national cancer records and death statistics from 2015 to 2021, also show promising progress in survival rates for people with the deadliest, most advanced and hardest-to-treat cancers when compared with rates from the mid-1990s. The five-year survival rate for myeloma, for example, nearly doubled (from 32% to 62%). The survival rate for liver cancer tripled (from 7% to 22%), for late-stage lung cancer nearly doubled (from 20% to 37%), and for both melanoma and rectal cancer more than doubled (from 16% to 35% and from 8% to 18%, respectively).

For all cancers, the five-year survival rate more than doubled since the mid-1990s, rising from 17% to 35%.

This also signals a 34% drop in cancer mortality since 1991, translating to an estimated 4.8 million fewer cancer deaths between 1991 and 2023. These significant public health advances result from years of public investment in research, early detection and prevention, and improved cancer treatment, according to the report.

“This stunning victory is largely the result of decades of cancer research that provided clinicians with the tools to treat the disease more effectively, turning many cancers from a death sentence into a chronic disease,” said Rebecca Siegel, senior scientific director at the American Cancer Society and lead author of the report.

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As more people survive cancer, there is also a growing focus on the quality of life after treatment. Patients, families and caregivers face physical, financial and emotional challenges. Dr. William Dahut, the American Cancer Society’s chief scientific officer, said that ongoing innovation must go hand in hand with better support services and policies, so all survivors — not just the privileged — can have “not only more days, but better days.”

Indeed, the report also shows that not everyone has benefited equally from the advances of the last few decades. American Indian and Alaska Native people now have the highest cancer death rates in the country, with deaths from kidney, liver, stomach and cervical cancers about double that of white Americans.

Additionally, Black women are more likely to die from breast and uterine cancers than non-Black women — and Black men have the highest cancer rates of any American demographic. The report connects these disparities in survival to long-standing issues such as income inequity and the effects of past discrimination, such as redlining, affecting where people live — forcing historically marginalized populations to be disproportionately exposed to environmental carcinogens.

Dr. René Javier Sotelo, a urologic oncologist at Keck Medicine of USC, notes that the fight against cancer in Southern California, amid long-standing disparities facing vulnerable communities, is very much about overcoming educational, cultural and socioeconomic barriers.

While access to care and insurance options in Los Angeles are relatively robust, many disparities persist because community members often lack crucial information about risk factors, screening and early warning signs. “We need to insist on the importance of education and screening,” Sotelo said. He emphasized that making resources, helplines and culturally tailored materials readily available to everyone is crucial.

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He cites penile cancer as a stark example: rates are higher among Latino men in L.A., not necessarily due to lack of access, but because of gaps in awareness and education around HPV vaccination and hygiene.

Despite these persisting inequities, the dramatic nationwide improvement in cancer survival is unquestionably good news, bringing renewed hope to many individuals and families. However, the report also gives a clear warning: Proposed federal cuts to cancer research and health insurance could stop or even undo these important gains.

“We can’t stop now,” warned Shane Jacobson, the American Cancer Society’s chief executive.

“We need to understand that we are not yet there,” Sotelo concurred. ”Cancer is still an issue.”

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Clashing with the state, L.A. City moves to adopt lenient wildfire ‘Zone Zero’ regulations

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Clashing with the state, L.A. City moves to adopt lenient wildfire ‘Zone Zero’ regulations

As the state continues multiyear marathon discussions on rules for what residents in wildfire hazard zones must do to make the first five feet from their houses — an area dubbed “Zone Zero” — ember-resistant, the Los Angeles City Council voted Tuesday to start creating its own version of the regulations that is more lenient than most proposals currently favored in Sacramento.

Critics of Zone Zero, who are worried about the financial burden and labor required to comply as well as the detrimental impacts to urban ecosystems, have been particularly vocal in Los Angeles. However, wildfire safety advocates worry the measures endorsed by L.A.’s City Council will do little to prevent homes from burning.

“My motion is to get advice from local experts, from the Fire Department, to actually put something in place that makes sense, that’s rooted in science,” said City Councilmember John Lee, who put forth the motion. “Sacramento, unfortunately, doesn’t consult with the largest city in the state — the largest area that deals with wildfires — and so, this is our way of sending a message.”

Tony Andersen — executive officer of the state’s Board of Forestry and Fire Protection, which is in charge of creating the regulations — has repeatedly stressed the board’s commitment to incorporating L.A.’s feedback. Over the last year, the board hosted a contentious public meeting in Pasadena, walking tours with L.A. residents and numerous virtual workshops and hearings.

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Some L.A. residents are championing a proposed fire-safety rule, referred to as “Zone Zero,” requiring the clearance of flammable material within the first five feet of homes. Others are skeptical of its value.

With the state long past its original Jan. 1, 2023, deadline to complete the regulations, several cities around the state have taken the matter into their own hands and adopted regulations ahead of the state, including Berkeley and San Diego.

“With the lack of guidance from the State Board of Forestry and Fire Protection, the City is left in a precarious position as it strives to protect residents, property, and the landscape that creates the City of Los Angeles,” the L.A. City Council motion states.

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However, unlike San Diego and Berkeley, whose regulations more or less match the strictest options the state Board of Forestry is considering, Los Angeles is pushing for a more lenient approach.

The statewide regulations, once adopted, are expected to override any local versions that are significantly more lenient.

The Zone Zero regulations apply only to rural areas where the California Department of Forestry and Fire Protection responds to fires and urban areas that Cal Fire has determined have “very high” fire hazard. In L.A., that includes significant portions of Silver Lake, Echo Park, Brentwood and Pacific Palisades.

Fire experts and L.A. residents are generally fine with many of the measures within the state’s Zone Zero draft regulations, such as the requirement that there be no wooden or combustible fences or outbuildings within the first five feet of a home. Then there are some measures already required under previous wildfire regulations — such as removing dead vegetation like twigs and leaves, from the ground, roof and gutters — that are not under debate.

However, other new measures introduced by the state have generated controversy, especially in Los Angeles. The disputes have mainly centered around what to do about trees and other living vegetation, like shrubs and grass.

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The state is considering two options for trees: One would require residents to trim branches within five feet of a house’s walls and roof; the other does not. Both require keeping trees well-maintained and at least 10 feet from chimneys.

On vegetation, the state is considering options for Zone Zero ranging from banning virtually all vegetation beyond small potted plants to just maintaining the regulations already on the books, which allow nearly all healthy vegetation.

Lee’s motion instructs the Los Angeles Fire Department to create regulations in line with the most lenient options that allow healthy vegetation and do not require the removal of tree limbs within five feet of a house. It is unclear whether LAFD will complete the process before the Board of Forestry considers finalized statewide regulations, which it expects to do midyear.

The motion follows a pointed report from LAFD and the city’s Community Forest Advisory Committee that argued the Board of Forestry’s draft regulations stepped beyond the intentions of the 2020 law creating Zone Zero, would undermine the city’s biodiversity goals and could result in the loss of up to 18% of the urban tree canopy in some neighborhoods.

The board has not decided which approach it will adopt statewide, but fire safety advocates worry that the lenient options championed by L.A. do little to protect vulnerable homes from wildfire.

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Recent studies into fire mechanics have generally found that the intense heat from wildfire can quickly dry out these plants, making them susceptible to ignition from embers, flames and radiant heat. And anything next to a house that can burn risks taking the house with it.

Another recent study that looked at five major wildfires in California from the last decade, not including the 2025 Eaton and Palisades fires, found that 20% of homes with significant vegetation in Zone Zero survived, compared to 37% of homes that had cleared the vegetation.

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