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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Inside the collapse of Disney’s America, the US history-themed park that almost was
Disney faced criticism from both liberals and conservatives over cultural portrayals, leading to the cancellation of a controversial U.S. history-themed park near D.C.
As Disney CEO Bob Iger grapples with the unenviable task of navigating criticism from all sides, I can’t help but recall how executives decided to table an effort to “Disneyfy” American history 30 years ago.
My research and teaching investigates how media companies such as Disney construct historical narratives for popular consumption. I can only imagine how today’s culture wars would have expressed themselves at Disney’s proposed theme park, which would have featured everything from Civil War forts to Native American villages.
Disney eyes the outskirts of DC
From his early days as an animator, Walt Disney presented a sanitized and nostalgic view of America.
Mickey Mouse represented the “everyman,” while the company’s animators drew a largely optimistic portrait of America, first in the studio’s animated films and later in their theme parks. Anyone who has walked down Disneyland’s Main Street, U.S.A., witnessed Magic Kingdom’s Hall of Presidents or visited Epcot’s American Adventure can see how Disney strives to present an uncomplicated, uncritical view of the nation and its leaders.
Beginning in 1993, the company quietly started purchasing real estate in northern Virginia using shell companies. The land acquisitions became public knowledge only a few days before the announcement of the theme park, aptly named Disney’s America.
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The news was largely welcomed by politicians. Eisner had already gained the support of the state’s outgoing and incoming governors, along with the Virginia Commission on Population Growth and Development. The plan was to build the park in Haymarket, Virginia, a small, wealthy area southwest of Washington, D.C., a few miles from Manassas, the site of two major Civil War battles.
Although Disney had diligently worked to consolidate support ahead of the announcement, signs of conflict emerged during the first press conference, which featured Bob Weis, a Disney vice president who had helped oversee the planning of several theme parks.
“This is not a Pollyanna view of America,” he told the group of assembled reporters. “We want to make you a Civil War soldier. We want to make you feel what it was like to be a slave or what it was like to escape through the underground railroad.”
Questions over how Disney would tell the complex – often discriminatory – history of the nation spurred a group of historians, led by David McCullough, to lodge their concerns: How would Disney construct its narrative of the United States? And how would the park affect Manassas, one of the most important Civil War battle sites?
According to the original plans and brochures, Disney’s America would contain nine sections: a Colonial-era Presidents Square, an Indigenous village, Ellis Island, a factory town from the Industrial Revolution, a Civil War fort, a county fair, an early 19th-century port, a World War II-era battlefield and a Depression-era family farm.
On the surface, these themed areas seemed fitting. You could easily see them as exhibits at the Smithsonian. But issues emerged when people took into account that this was still a Disney theme park, with entertaining guests and making money likely taking precedence over historical accuracy and contemporary sensitivities and sensibilities.
There were also concerns over how Disney would handle the exploitative and violent history of the treatment of a number of groups.
This included the enslavement of Africans and the genocide of Indigenous populations, the latter of which was also connected to the forthcoming 1995 release of “Pocahontas.” Historians later highlighted the film’s distorted history, and it isn’t far-fetched to imagine rides or attractions based on those misrepresentations at Disney’s America.
Mickey Mouse goes to Washington
Even as plans came together for Disney, criticism began to mount.
Disney issued an ultimatum to the Virginia legislature to improve infrastructure surrounding the site, threatening to abandon the project if the US$150 million for infrastructure improvements were not passed on the last day of the Virginia General Assembly’s legislative session in March 1994.
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In June, the U.S. House of Representatives introduced a resolution opposing the park, and the U.S. Senate Committee on Energy and Natural Resources held a hearing regarding the proposed project’s environmental impact.The proposed logo for Disney’s America. Wikimedia Commons
As criticism mounted, Disney decided to shift its approach. In the summer of 1994, it renamed the project Disney’s American Celebration.
Rather than highlight periods or events in American history, the new concept would focus more on themes: Democracy, Work, Family, Generations, Streets of America and the Land.
Many of the attractions featured in these lands would have resembled attractions already in Disney parks. For example, Generations would have been similar to the Magic Kingdom’s Carousel of Progress, while the Land was already a pavilion at Epcot.
This would have also opened more opportunities for sponsorship. The Work section of the park would have included virtual factory tours of popular brands such as Apple or Crayola, while Streets of America would have featured cuisine from around the country, similar to Downtown Disney, which opened in 1997 in Disney World and in 2001 at Disneyland.
It all falls apart
Disney abruptly announced on Sept. 28, 1994, that it would abandon these plans.
Although the criticism from historians was a factor, there were also concerns about the park’s profitability in colder months. The company faced mounting debt from its Paris theme park and uncertain leadership after the death of senior executive Frank Wells in a helicopter crash in April 1994. Eisner, meanwhile, had undergone bypass surgery in July 1994.
Many of the attractions that were planned for the Virginia site found their way into Disney parks, particularly in Disney’s California Adventure in Anaheim.
Disney, both under Walt’s leadership and after his death, has long leveraged patriotism for the sake of its media content and park experiences. From Mickey Mouse to the Hall of Presidents, Disney’s nostalgic, linear and uncomplicated view of American progress has been foundational to the Disney experience.
However, an entire park dedicated to this approach – just down the road from a real battlefield integral to the bloodiest war in U.S. history – was too much for historians and other critics to ignore.
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Disney’s failure to profit from an uncritical celebration of America may have been a blessing in disguise, as it avoided constructing yet another battlefield in the culture wars.
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Valley Metro to Exit CAPEX Capitol Extension After Phoenix Council Shifts Focus to Indian School Road Corridor
Valley Metro is shifting its focus on high-capacity transit planning in west Phoenix following a City Council vote, prioritizing a new corridor along Indian School Road while exiting the Capitol Extension project, CAPEX, and seeking community engagement.
Valley Metro is officially shifting gears on high-capacity transit planning in west Phoenix following a Phoenix City Council vote earlier this year.
In a message to the public, Valley Metro said that after the Jan. 27, 2026 City Council decision to re-evaluate high-capacity transit options and prioritize a proposed West Phoenix corridor along Indian School Road, the agency will exit project development and the Federal Transit Administration Capital Investment Grant (CIG) process for the Capitol Extension (CAPEX) project.
What the City Council voted to do
According to Valley Metro, the Phoenix City Council voted to take another look at high-capacity transit options for west Phoenix and to prioritize studying a new corridor alignment along Indian School Road.
What Valley Metro is doing next
Valley Metro emphasized it still supports expanding high-capacity transit in west Phoenix, citing demand and mobility needs in the corridor. But the agency says it will now pivot away from CAPEX and toward the new study effort.
Key next steps Valley Metro outlined include:
Exiting the CAPEX project development process and the federal CIG pipeline
Advancing planning for the West Phoenix study along Indian School Road
Centering comprehensive community engagement, including outreach to residents, business owners, and stakeholders along the corridor
Working closely with the City of Phoenix on project development
Coordinating with the Federal Transit Administration to explore funding opportunities
How to stay engaged
Valley Metro is encouraging residents to sign up for updates as the next phase moves forward at valleymetro.org/notices.
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After the Blood Moon: Scientists and Skywatchers React to the March 3, 2026 Total Lunar Eclipse
The March 3, 2026 total lunar eclipse amazed skywatchers worldwide. Scientists and amateur astronomers share reactions and photos from the dramatic blood moon event.
Millions of people around the world looked to the sky in the early hours of March 3, 2026 to witness one of the most striking astronomical events of the year — a total lunar eclipse, often referred to as a “Blood Moon.” As the Moon passed completely into Earth’s shadow, it transformed from its familiar silver glow into a deep copper-red color, captivating observers from North America to Asia and across the Pacific.
Blood Moon Aftermath: Scientists and Skywatchers React to the March 3, 2026 Total Lunar Eclipse
For viewers in the western United States, including Arizona and California, the eclipse occurred just before sunrise. The timing created a dramatic scene as the reddish Moon hovered low in the western sky while the eastern horizon began to brighten with dawn.
A Global Skywatching Event
Total lunar eclipses occur when the Sun, Earth, and Moon align so that Earth’s shadow completely covers the Moon. During the March 3 event, the Moon spent nearly an hour fully inside the darkest part of Earth’s shadow, known as the umbra. During this phase, sunlight filtered through Earth’s atmosphere projected reddish light onto the Moon’s surface, creating the dramatic “blood moon” effect.
Astronomers noted that the event was particularly significant because total lunar eclipses are relatively infrequent. While partial eclipses occur more often, a full eclipse visible across large portions of the globe remains a memorable experience for both scientists and casual observers.
Scientists Explain the Phenomenon
According to researchers at NASA, the reddish color seen during totality occurs because Earth’s atmosphere scatters shorter wavelengths of sunlight — such as blue — while allowing longer red wavelengths to pass through. This filtered light is then bent, or refracted, into Earth’s shadow and projected onto the Moon.
Planetary scientists say lunar eclipses provide a powerful visual demonstration of the geometry of the Earth–Moon–Sun system. The curved shadow moving across the Moon also historically served as one of the earliest pieces of evidence that Earth is spherical.
Researchers also point out that lunar eclipses offer opportunities to study Earth’s atmosphere. Variations in dust, volcanic particles, and atmospheric conditions can influence how dark or red the Moon appears during totality.Taken in North Phoenix around 5 AM MST March 3, 2026
Amateur Astronomers Share Their Views
While professional observatories monitored the eclipse with precision instruments, amateur astronomers and astrophotographers helped document the event from countless locations worldwide. Social media platforms and astronomy forums quickly filled with images showing the Moon’s color shifting from pale gray to orange and deep red.
Many skywatchers in the southwestern United States described the experience as particularly dramatic because the eclipse occurred just before moonset. Observers reported seeing the Moon glowing red above desert landscapes and city skylines before gradually fading into the brightening morning sky.
Astrophotographers also emphasized that lunar eclipses are among the easiest astronomical events to capture. Unlike solar eclipses, they can be photographed safely without special filters, making them accessible to beginners using smartphones as well as professionals using telescopes and high-end cameras.
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A Rare Pre-Dawn Sight
In parts of the western United States, some observers were able to witness a rare atmospheric phenomenon known as a selenelion, when both the eclipsed Moon and the rising Sun appear in the sky at the same time due to atmospheric refraction. The effect added an unusual visual element to an already impressive celestial event.
The combination of a deep red Moon and the approaching dawn created striking photographic opportunities and memorable moments for early-morning skywatchers.
When Is the Next Total Lunar Eclipse?
Although partial eclipses occur periodically, the next widely visible total lunar eclipse will not occur until late 2028. That makes the March 2026 eclipse one of the most notable skywatching events of the decade.
For many observers, the event served as a reminder that some of the most spectacular astronomical experiences require nothing more than stepping outside, looking up, and taking a moment to appreciate the universe above.
Rod: A creative force, blending words, images, and flavors. Blogger, writer, filmmaker, and photographer. Cooking enthusiast with a sci-fi vision. Passionate about his upcoming series and dedicated to TNC Network. Partnered with Rebecca Washington for a shared journey of love and art.
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.
