avian flu outbreak

No human illnesses have been associated with this virus in North America. Subscribe to Heres the Deal, our politics The virus is highly pathogenic to birds, meaning that infections often cause extreme symptoms, including death. The COVID con is over, monkeypox is a non-event, so lets resurrect bird flu as the new threat to mankind and a chance for Big Pharma to create a new raft of bloated billionaires.You must think Jo Public is even dumber than the brains behind these pathetic endless scare stories. Bird Flu Outbreak in the US: What to Know - Healthline You can unsubscribe at any time using the link in our emails. He can be reached at Evan.Bush@nbcuni.com. The spread of bird flu viruses from one infected person to a close contact has occurred rarely in other countries in the past, and when it has happened, it has been limited and not sustained,and didnotspread beyond close contacts. Recently it has begun infecting an exploding diversity of bird and mammalian species around the globe. Which cells influenza infects is partially dictated by the specific receptor that it binds. Learn more. The U.S. is enduring an unprecedented poultry health disaster, with a highly . No, thats not necessary. If you do not allow these cookies we will not know when you have visited our site, and will not be able to monitor its performance. The USDA recommends cooking eggs and poultry to an internal temperature of 165 degrees Fahrenheit (74 Celsius). ScienceDaily. Currently, the risk to humans remains low; however, sporadic human infections with bird flu viruses have occurred. A wave of the highly pathogenic H5N1 avian flu has entered Southern California, driven by wild bird migration. "This outbreak in the wild bird population is a lot more extensive than we saw in 2014 and 2015," says David Stallknecht, an avian influenza researcher with the University of Georgia. Learn more about past human infections with bird flu viruses. Because the current strain (H5N1) causes heavy losses to poultry, it is referred to as highly pathogenic avian influenza, or HPAI. The more than 50,000 mink at the facility were killed and their carcasses destroyed. But nearly 11 months after the first known wild case in the current outbreak, the deadly influenza virus is still here. These cookies may also be used for advertising purposes by these third parties. As those birds traveled, so did the virus. Speaking about this death to AP, James Wood, the head of the department of veterinary medicine at Cambridge University, said there is no reason to be unduly concerned about human infection with bird flu. Although declaring a disease endemic is a complicated process, the authors of the study suggest that the U.S. will likely follow patterns seen in Europe where highly pathogenic avian influenza is already being treated as an endemic disease rather than something that can be eradicated. 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The most important mutational changes affect the tissue tropism of the virus its ability to infect a specific part of the body. The paper was published April 19, 2023, in the journal Conservation Biology. The researchers believe that bird flu will probably become endemic a phenomenon where a disease is constantly present within an area or community in the US which could affect food security and the economy. Outbreaks have become more common due to the high density and frequent movement of flocks from intensive poultry production. Avian influenza viruses are classified as either "low pathogenic" or "highly pathogenic" based on their genetic features and the severity of the disease they cause in poultry. The virus can take commercial poultry farms out of commission for extended periods. The team also suggests that H5N1 will likely become endemic, potentially posing risks to food security and the economy. Some birds have died from the disease itself, but the vast majority are being culled through flock "depopulation," to try to stop the virus from spreading. The 2015 avian flu outbreak generally happened in the fall, when . But the new, more contagious strain is particularly affecting wild birds, Sky News reported. A flock of pintail ducks flying in winter. Efforts to prevent infections in commercial and backyard flocks are ongoing, but slowing the outbreak has been challenging because the virus seems to have gained a foothold in species of wild birds, said Biao He, a professor of infectious diseases at the University of Georgia College of Veterinary Medicine. However, since then, infections in both humans and birds have been observed. The average cost of a dozen eggs rose by 59% last year, according to the Bureau of Labor Statistics, with prices more than doubling in West Virginia and six states in the upper Midwest. Centers for Disease Control and Prevention. > Subscribe Free to Email Digest, New research suggests that lonely individuals process the world differently than their peers, regardless of their social network size, potentially contributing to their feelings of. Instead, the virus sort of simmered through the summer months, she adds, "and then we get into the cooler, wetter months of the fall and we see a resurgence. How bad is the outbreak? University of Maryland. The first U.S. case of a person infected with avian influenza A (H5N1) virus was reported in April in Colorado. Between December 2022 and February 2023, highly pathogenic avian influenza (HPAI) has been detected in wild aquatic birds (pelicans and penguins) and sea mammals (sea lions) in the Antofagasta Region where the case resides. These decisions have to be made on multiple scales.". His lab is largely operating seven days a week. Entire flocks, which can top a million birds at egg-laying chicken farms, are also culled to control the spread of the disease after a bird tests positive. Centers for Disease Control and Prevention. Clearly, the virus needs careful monitoring and surveillance to check that it has not mutated or recombined, but the limited numbers of cases of human disease have not increased markedly, and this one case in itself does not signal the global situation has suddenly changed," he said. By clicking Sign up, you agree to receive marketing emails from Insider Original written by Kimbra Cutlip. Vet Expert Explains Why the Current Avian Flu Outbreak Has People Monitoring and prevention of avian influenza has improved since the last major outbreak in 2015, Lorenzoni said, when roughly 50 million birds were killed over six months. Left: Well, whod have thought it? Get the latest science news in your RSS reader with ScienceDaily's hourly updated newsfeeds, covering hundreds of topics: Keep up to date with the latest news from ScienceDaily via social networks: Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Over the centuries, some of these avian influenza viruses have been passed from birds to humans and other mammalian species, although this is a relatively rare event. Why this bird flu is different: Scientists say new avian influenza requires urgent coordinated response. A sample of avian influenza isolated from a Chilean man who fell ill last month contains two genetic mutations that are signs of adaptation to mammals, officials from the Centers . What are the triggers for different actions, and how do we measure if we're succeeding? CDC twenty four seven. The unprecedented spread of disease and 2022's high inflation rates raising farmers' costs caused the jump and it doesn't look like it will change soon. The worst outbreak of avian influenza on record is threatening to stretch into a second year, as the U.S. races to contain a virus that has already caused some food prices to soar amid a shortage . The U.S. Department of Agriculture said the avian influenza A virus has been detected in mammals such as skunks, bears, a raccoon and a red fox. CDC has been comparing the properties of current H5N1 bird flu viruses to past H5N1 bird flu viruses and has found that current H5N1 bird flu viruses detected in the U.S. during late 2021 and 2022 are different from earlier H5N1 bird flu viruses. . The views expressed in this article are those of the author alone and not the World Economic Forum. There have been relatively few human infections detected fewer than 900 documented globally over several decades but about half of those infected individuals have died. These cookies may also be used for advertising purposes by these third parties. Subscribe to Here's the Deal, our politics newsletter. Signals that could raise the public health risk might include multiple reports of H5N1 virus infections in people from exposure to birds, or identification of spread from one infected person to a close contact. Importers would not be able to distinguish vaccinated birds from infected birds based on the routine testing, so they might ban all U.S. poultry exports. A man weighs and checks his flock of white turkeys at his family's farm last year in Townsend, Del. With all those replications, it can accumulate a lot of different changes. That includes millions of chickens and turkeys in barns and backyards that had been raised to provide eggs or meat. You can review and change the way we collect information below. In 2015, about 30% of the cases were traced directly to wild bird origins, compared to 85% this year, the USDA told Reuters. hide caption. This webpage will be updated at 2 PM EST each Wednesday to reflect any new data posted in the previous week. Learn more about the latest avian influenza situation in the United States and globally. Previous outbreaks of avian influenza -- whether low pathogenic virus that is endemic in the U.S. or highly pathogenic H5N8 in 2015 -- typically occurred in the fall, which meant farmers could . Experts say the virus, known as Highly Pathogenic Avian Influenza, or HPAI, has been difficult to contain because it appears to be more prevalent in wild birds now than during previous outbreaks a development that also makes future infections more likely. Liu Guanguan/China News Service via Getty Images said Jennifer Mullinax, assistant professor in the UMD Department of Environmental Science & Technology and a co-author of the study. Sporadic human cases of H5N1 reported with H5N1 viruses circulating in birds since 2021 have occurred following exposure to infected poultry. Nearly 58 million birds from commercial and backyard flocks have been wiped out in the U.S. since last February, according to the U.S. Department of Agricultures Animal and Plant Health Inspection Service. As of early April, the outbreak had caused the culling of some 23 million birds from Maine to Wyoming. Details: The bird flu can kill birds once they're infected, according to Reuters. Cookies used to enable you to share pages and content that you find interesting on CDC.gov through third party social networking and other websites. Birds experience influenza as a gastrointestinal infection and spread flu predominantly through defecating in water. April 14, 2023. More than 77 million poultry, most raised in crowded. A University of Maryland (UMD)-led team of researchers tracked the arrival and progression of the deadly bird flu (H5N1) in North America to determine how this outbreak is different from previous ones. They have to remove dead birds, disinfect their facility and bring new birds in thats a several-month process to do that, said Kevin Snekvik, the executive director of the Washington Animal Disease Diagnostic Laboratory at Washington State University. As it is now, this is the largest animal emergency that the USDA has faced in this country, said GinoLorenzoni, an assistant professor of poultry science and avian health at Pennsylvania State University. AI viruses are classified by a combination of two groups of proteins: hemagglutinin or "H" proteins, of which there . Evan Bush is a science reporter for NBC News. Virus can be fatal. Six main hemagglutinin (HA) subtypes of bird flu viruses have infected people to cause acute respiratory illness (H3, H5, H6, H7, H9, and H10 viruses). And if infections go unnoticed, they could spread to other farms before farmers can put control measures in place. Experts are concerned that a new global disease outbreak, possibly worse than Covid-19, might begin any day. The worst outbreak of avian influenza on record is threatening to stretch into a second year, as the U.S. races to contain a virus that has already caused some food prices to soar amid a shortage of eggs. The primary natural hosts and reservoir of AI viruses are wild waterfowl, such as ducks and geese. More than 40 million egg-laying hens have been culled in the U.S. alone, causing the price of eggs nationwide to skyrocket, Lorenzoni said. This is because bird influenza viruses must mutate in several ways to infect mammals efficiently. Scientists continue to monitor the ongoing global avian influenza outbreak also referred to as bird flu that has killed millions of birds and has now crossed over to some species of mammals. In Iowa, two massive egg-laying operations had to cull more than 5 million birds in single incidents earlier this year. More than 60% of U.S. broiler . A Gull Flaps Its Wings and a Deadly Virus Explodes More information about this case is, The detections of H5 viruses in wild birds, poultry, some mammals, and in one person in the United States do not change the risk to the general publics health, which CDC considers to be low. They help us to know which pages are the most and least popular and see how visitors move around the site. That was the case in the 2014-2015 outbreak which came when Hagerman worked at the U.S. Department of Agriculture's Animal and Plant Health Inspection Service, or APHIS. Hagerman warns that in a time of inflationary pressure and supply-chain snags, it can be hard to directly link a price hike to the virus. Rescued chickens gather in an aviary at Farm Sanctuary's Southern California Sanctuary on Oct. 5 in Acton, Calif. A wave of the highly pathogenic H5N1 avian flu has entered Southern California, driven by wild bird migration. A key part of the challenge, Webby says, is that like the SARS-CoV-2 virus, the avian flu virus has spun off several variants of concern. This is happening as we speak, and this is why Im afraid influenza is going to be with us for a long while.. Once viruses are in cells, they may be able to produce copies of themselves, at which point an infection has been achieved. Here's what you need to know about the 2022 outbreak in the U.S.: The losses stretch across the U.S., and they're deepest in the country's middle: More than 1 million birds have been killed in each of 11 states that stretch from Utah to the Midwest and on to Delaware, according to the U.S. Department of Agriculture. Johanna A Harvey, Jennifer M. Mullinax, Michael C. Runge, Diann J. Prosser. CDCand USDA have developed guidance for specific audiences, including the, A handout containing information and guidance for people exposed to birds with bird flu is available at, More information about how to protect yourself against bird flu is. Avian influenza, also known as avian flu, is a bird flu caused by the influenza A virus, which can infect people. "Generally speaking, these complexes are over a million birds, easily," Hagerman says. The team found that the deadly impact on wild birds and a shift from seasonal to year-round infections signal dangerous changes in avian influenza in the U.S. "That gave us a really powerful . Cookies used to track the effectiveness of CDC public health campaigns through clickthrough data. No known human-to-human spread has occurred with the A(H5N1) virus that is currently circulating in birds in the United States and globally. This article was first published in The Conversation. Human infections with bird flu viruses have most often occurred after close or lengthy unprotected contact (i.e., not wearing gloves or respiratory protection or eye protection) with infected birds or places that sick birds or their saliva, mucous and feces have touched. Right now, the best way people can protect themselves from H5N1 is to avoid contact with infected birds. The Biden administration is considering vaccinating farmed poultry flocks, but the logistics could be quite complicated. "Why this bird flu is different: Scientists say new avian influenza requires urgent coordinated response." It is not intended to provide medical or other professional advice. LPAI can cause mild to moderate disease in poultry, and usually little to no clinical signs of illness in wild birds. Though human infection is currently rare, efficient transmission between farmed minks in Spain raises concerns about potential human transmission.

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