There is currently no bird flu vaccine for people.
Digicomphoto/ Science Photo Library via Getty ImagesHanna D. Paton, University of Iowa
The flu sickens millions of people in the U.S. every year, and the past year has been particularly tough. Although infections are trending downward, the Centers for Disease Control and Prevention has called the winter of 2024-2025 a “high severity” season with the highest hospitalization rate in 15 years.
Since early 2024, a different kind of flu called bird flu, formally known as avian influenza, has been spreading in birds as well as in cattle. The current bird flu outbreak has infected 70 Americans and caused two deaths as of April 8, 2025. Public health and infectious disease experts say the risk to people is currently low, but they have expressed concern that this strain of the bird flu virus may mutate to spread between people.
As a doctoral candidate in immunology, I study how pathogens that make us sick interact with our immune system. The viruses that cause seasonal flu and bird flu are distinct but still closely related. Understanding their similarities and differences can help people protect themselves and their loved ones.
What is influenza?
The flu has long been a threat to public health. The first recorded influenza pandemic occurred in 1518, but references to illnesses possibly caused by influenza stretch back as as early as 412 B.C., to a treatise called Of the Epidemics by the Greek physician Hippocrates.
Today, the World Health Organization estimates that the flu infects 1 billion people every year. Of these, 3 million to 5 million infections cause severe illness, and hundreds of thousands are fatal.
Influenza is part of a large family of viruses called orthomyxoviruses. This family contains several subtypes of influenza, referred to as A, B, C and D, which differ in their genetic makeup and in the types of infections they cause. Influenza A and B pose the largest threat to humans and can cause severe disease. Influenza C causes mild disease, and influenza D is not known to infect people. Since the turn of the 20th century, influenza A has caused four pandemics. Influenza B has never caused a pandemic.
A notice from Oct. 18, 1918, during the Spanish flu pandemic, about protecting yourself from infection.Illustrated Current News/National Library of Medicine, CC BY
An influenza A strain called H1N1 caused the famous 1918 Spanish flu pandemic, which killed about 50 million people worldwide. A related H1N1 virus was responsible for the most recent influenza A pandemic in 2009, commonly referred to as the swine flu pandemic. In that case, scientists believe multiple different types of influenza A virus mixed their genetic information to produce a new and especially virulent strain of the virus that infected more than 60 million people in the U.S. from April 12, 2009, to April 10, 2010, and caused huge losses to the agriculture and travel industries.
Both swine and avian influenza are strains of influenza A. Just as swine flu strains tend to infect pigs, avian flu strains tend to infect birds. But the potential for influenza A viruses that typically infect animals to cause pandemics in humans like the swine flu pandemic is why experts are concerned about the current avian influenza outbreak.
Seasonal flu versus bird flu
Different strains of influenza A and influenza B emerge each year from about October to May as seasonal flu. The CDC collects and analyzes data from public health and clinical labs to determine which strains are circulating through the population and in what proportions. For example, recent data shows that H1N1 and H3N2, both influenza A viruses, were responsible for the vast majority of cases this season. Standard tests for influenza generally determine whether illness is caused by an A or B strain, but not which strain specifically.
Officials at the Food and Drug Administration use this information to make strain recommendations for the following season’s influenza vaccine. Although the meeting at which FDA advisers were to decide the makeup of the 2026 flu vaccine was unexpectedly canceled in late February, the FDA still released its strain recommendations to manufacturers.
The recommendations do not include H5N1, the influenza A strain that causes avian flu. The number of strains that can be added into seasonal influenza vaccines is limited. Because cases of people infected with H5N1 are minimal, population-level vaccination is not currently necessary. As such, seasonal flu vaccines are not designed to protect against avian influenza. No commercially available human vaccines currently exist for avian influenza viruses.
How do people get bird flu?
Although H5N1 mainly infects birds, it occasionally infects people, too. Human cases, first reported in 1997 in Hong Kong, have primarily occurred in poultry farm workers or others who have interacted closely with infected birds.
Initially identified in China in 1996, the first major outbreak of H5 family avian flu occurred in North America in 2014-2015. This 2014 outbreak was caused by the H5N8 strain, a close relative of H5N1. The first H5N1 outbreak in North America began in 2021 when infected birds carried the virus across the ocean. It then ripped through poultry farms across the continent.
The H5N1 strain of influenza A generally infects birds but has infected people, too.NIAID and CDC/flickr, CC BY
In March 2024, epidemiologists identified H5N1 infections in cows on dairy farms. This is the first time that bird flu was reported to infect cows. Then, on April 1, 2024, health officials in Texas reported the first case of a person catching bird flu from infected cattle. This was the first time transmission of bird flu between mammals was documented.
As of March 21, 2025, there have been 988 human cases of H5N1 worldwide since 1997, about half of which resulted in death. The current outbreak in the U.S. accounts for 70 of those infections and one death. Importantly, there have been no reports of H5N1 spreading directly from one person to another.
Since avian flu is an influenza A strain, it would show up as positive on a standard rapid flu test. However, there is no evidence so far that avian flu is significantly contributing to current influenza cases. Specific testing is required to confirm that a person has avian flu. This testing is not done unless there is reason to believe the person was exposed to sick birds or other sources of infection.
How might avian flu become more dangerous?
As viruses replicate within the cells of their host, their genetic information can get copied incorrectly. Some of these genetic mutations cause no immediate differences, while others alter some key viral characteristics.
Influenza viruses mutate in a special way called reassortment, which occurs when multiple strains infect the same cell and trade pieces of their genome with one another, potentially creating new, unique strains. This process prolongs the time the virus can inhabit a host before an infection is cleared. Even a slight change in a strain of influenza can result in the immune system’s inability to recognize the virus. As a result, this process forces our immune systems to build new defenses instead of using immunity from previous infections.
Reassortment can also change how harmful strains are to their host and can even enable a strain to infect a different species of host. For example, strains that typically infect pigs or birds may acquire the ability to infect people. Influenza A can infect many different types of animals, including cattle, birds, pigs and horses. This means there are many strains that can intermingle to create novel strains that people’s immune systems have not encountered before – and are therefore not primed to fight.
It is possible for this type of transformation to also occur in H5N1. The CDC monitors which strains of flu are circulating in order prepare for that possibility. Additionally, the U.S. Department of Agriculture has a surveillance system for monitoring potential threats for spillover from birds and other animals, although this capacity may be at risk due to staff cuts in the department.
These systems are critical to ensure that public health officials have the most up-to-date information on the threat that H5N1 poses to public health and can take action as early as possible when a threat is evident.Hanna D. Paton, PhD Candidate in Immunology, University of Iowa
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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MALMÖ, Sweden /PRNewswire/ — Guided by the vision of creating a better everyday life for the many people, Ingka Group, the largest IKEA retailer, is stepping up efforts to support customers with low price while ensuring long-term growth. In many IKEA markets around the world*, the price of restaurant meals will be halved Monday through Friday, and children will eat for free.
IKEA reduces food prices (photo credit IKEA)
With hundreds of millions of guests visiting IKEA restaurants every year, the company aims to inspire a better everyday life through food that is healthier, more sustainable, and affordable. As part of ongoing investments in the in-store experience, Ingka Group is introducing this price drop to help people stretch their budgets, nourish their families, and find a little more joy.
For example, in France, the price of lunch for a family of four, which includes two hot-meals with meatballs for adults and two meals for kids, will cost EUR 6.96 instead of EUR 19.9. In addition, all restaurant guests will receive a EUR 5 voucher to use in-store.
“Food has always been very important for IKEA, and we wanted to enable even more people to enjoy our restaurant offer while exploring our home furnishing range,” says Tolga Öncü, Ingka Retail Manager (COO) at IKEA Retail (Ingka Group). “Securing the lowest possible price for our products is always our utmost goal, and this is even more important in today’s times of economic uncertainties and cost-of-living pressures.”
At the same time, IKEA is refreshing its food offer with new dishes inspired by Asian flavours, expanding affordable, healthy options for customers.
“We always look for ways to bring more variety to our food offer, especially with new plant-based options,” says Lorena Lourido Gomez, Global Food Manager, IKEA Retail (Ingka Group). “We will soon launch our very first falafel, adding this popular food to our restaurants and, later, to our Swedish Food Markets. Good quality, low price, and making a positive difference for the planet – those ingredients remain a guiding star for our food business.”
Heading toward the end of FY25, IKEA remains focused on helping customers make the most of their finances while delivering value through both food and home furnishing.
*Austria, Canada, China, Denmark, France, Germany, Italy, Netherlands, Poland, Portugal, South Korea, Sweden, Switzerland, UK.
Slate Auto made waves in early 2025 by announcing an electric pickup truck with a revolutionary promise: a starting price under $20,000. With a minimalist, modular design and direct-to-consumer sales model, the company hoped to disrupt the industry by delivering a rugged, no-frills EV that everyday drivers could actually afford.
But that promise may now be broken.
In July 2025, the newly passed “Big Beautiful Bill” from President Donald Trump eliminated the $7,500 federal EV tax credit, a cornerstone of Slate’s pricing model. And as of now, Slate has quietly removed its sub-$20K price claims, signaling a dramatic shift in its market positioning.
What Was the Original Plan?
Slate Auto’s vision was simple:
Base price of the pickup: ~$25,000 Subtract $7,500 tax credit → final cost: $17,500 Optional bolt-on accessories and upgrades for customization
This formula positioned the Slate truck as a compelling solution for tradespeople, students, rural drivers, and eco-conscious buyers seeking low-cost alternatives to gas trucks.
What Changed?
The Trump administration’s “Big Beautiful Bill,” passed in July 2025, includes a provision that eliminates all federal EV tax credits starting September 30, 2025. That means:
No more $7,500 off at the point of sale Budget EVs like Slate’s are left to float—or sink—on their true retail pricing EV industry analysts warn of broader slowdowns in adoption
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For Slate, it means their truck is no longer “America’s first under-$20K EV pickup.” Instead, the expected price now ranges from $25,000 to $27,500, and could rise to $35K with add-ons—putting it closer to competitors like the Ford Maverick Hybrid and Chevy Equinox EV.
The Fallout
This change hits hard for Slate, which built its brand on simplicity and accessibility. Without the tax credit:
Entry-level customers are priced out Preorder holders may cancel based on unexpected price hikes Market differentiation is weakened, as affordability was Slate’s primary value proposition
Meanwhile, critics argue the rollback of tax credits slows EV adoption at a critical time in the climate fight. Environmental groups and consumer advocates are already pushing back, saying the bill disproportionately hurts low- and middle-income Americans who were just beginning to consider electric vehicles.
What’s Next for Slate?
Slate says it still plans to begin production in late 2026, but without the EV credit, it must rework its pricing strategy and value offering. Possibilities include:
Offering fewer standard features Creating stripped-down fleet or worksite models Lobbying for state-level incentives to offset federal losses
Whether these changes will be enough to keep Slate competitive remains to be seen.
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Final Thoughts
The electric vehicle space is undergoing seismic shifts, and the demise of the federal EV tax credit is likely to create ripple effects across the industry. For Slate Auto, the dream of a sub-$20K EV pickup may be over—but if they can pivot wisely, the company could still carve out a niche in the fast-evolving electric truck market.
Dive into “The Knowledge,” where curiosity meets clarity. This playlist, in collaboration with STMDailyNews.com, is designed for viewers who value historical accuracy and insightful learning. Our short videos, ranging from 30 seconds to a minute and a half, make complex subjects easy to grasp in no time. Covering everything from historical events to contemporary processes and entertainment, “The Knowledge” bridges the past with the present. In a world where information is abundant yet often misused, our series aims to guide you through the noise, preserving vital knowledge and truths that shape our lives today. Perfect for curious minds eager to discover the ‘why’ and ‘how’ of everything around us. Subscribe and join in as we explore the facts that matter. https://stmdailynews.com/the-knowledge/
In an exciting development for astronomers and space enthusiasts alike, scientists have confirmed the discovery of a new interstellar object—officially named 3I/ATLAS—currently passing through our solar system. This marks only the third known object from another star system to visit us, following the mysterious ‘Oumuamua in 2017 and the icy 2I/Borisov in 2019.
The object was first detected on July 1, 2025, by the ATLAS telescope in Chile. Initially cataloged as A11pl3Z, further analysis confirmed that its speed and orbital trajectory are hyperbolic—meaning it’s not bound by the Sun’s gravity and is merely passing through, just like its rare predecessors.
What Do We Know About 3I/ATLAS?
Origin: The object’s interstellar origin is confirmed by its high velocity—traveling at around 60 km/s (37 miles per second)—and its hyperbolic orbit. Composition: Unlike ‘Oumuamua, which sparked debate due to its lack of a visible tail, 3I/ATLAS appears to be a comet, exhibiting a faint coma and short dust tail. Size: The comet’s nucleus could be as large as 10 kilometers (6 miles) across, though dust and debris around it may be inflating those estimates. Distance from Earth: It will come no closer than 150 to 240 million miles, posing no threat to our planet. Visibility: It’s currently about 420 million miles from the Sun and will reach its closest approach (perihelion) around October 29–30, 2025. After briefly disappearing behind the Sun, it may reappear for additional observation in December.
🚨 A comet from another star system is flying through our solar system right now! 🌠 Meet 3I/ATLAS — only the 3rd interstellar object ever seen! 👽✨ SpaceTok 3IATLAS Oumuamua Interstellar ScienceTok AstronomyFacts DidYouKnow CosmicVisitor #STMDailyNews https://stmdailynews.com/a-new-interstell…our-solar-system/ ♬ original sound – STMDailyNews – STMDailyNews
Why Interstellar Objects Matter
Interstellar objects are not just celestial curiosities—they are time capsules carrying information about the environments where they formed, likely in entirely different star systems. Their compositions, movements, and structures give scientists rare glimpses into the diversity of planetary building blocks in our galaxy.
‘Oumuamua puzzled scientists with its unusual shape and lack of comet-like activity, while 2I/Borisov looked more like a traditional comet. Now, 3I/ATLAS gives us another chance to compare and contrast these space travelers and deepen our understanding of how solar systems form and evolve.
Eyes on the Sky
Though faint and fast-moving, 3I/ATLAS is already being tracked by observatories around the world. With modern telescopes and tools that weren’t available even a decade ago, astronomers are optimistic about gathering unprecedented data on this rare visitor.
Whether you’re a seasoned stargazer or a casual cosmic tourist, it’s thrilling to know that something from another solar system is soaring through our cosmic backyard—reminding us of the vastness and wonder of the universe.
Dive into “The Knowledge,” where curiosity meets clarity. This playlist, in collaboration with STMDailyNews.com, is designed for viewers who value historical accuracy and insightful learning. Our short videos, ranging from 30 seconds to a minute and a half, make complex subjects easy to grasp in no time. Covering everything from historical events to contemporary processes and entertainment, “The Knowledge” bridges the past with the present. In a world where information is abundant yet often misused, our series aims to guide you through the noise, preserving vital knowledge and truths that shape our lives today. Perfect for curious minds eager to discover the ‘why’ and ‘how’ of everything around us. Subscribe and join in as we explore the facts that matter. https://stmdailynews.com/the-knowledge/
🧠 Forgotten Genius Fridays
A Short-Form Series from The Knowledge by STM Daily News
Every Friday, STM Daily News shines a light on brilliant minds history overlooked.
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Forgotten Genius Fridays is a weekly collection of short videos and articles dedicated to inventors, innovators, scientists, and creators whose impact changed the world—but whose names were often left out of the textbooks.
From life-saving inventions and cultural breakthroughs to game-changing ideas buried by bias, our series digs up the truth behind the minds that mattered.
Each episode of The Knowledge runs 30–90 seconds, designed for curious minds on the go—perfect for YouTube Shorts, TikTok, Reels, and quick reads.
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Because remembering these stories isn’t just about the past—it’s about restoring credit where it’s long overdue.
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Hanna D. Paton, PhD Candidate in Immunology, University of Iowa
This article is republished from The Conversation under a Creative Commons license. Read the original article.
