Birds and their droppings can carry over 60 transmissible diseases. Avian influenza, or bird flu is a contagious disease of animals caused by viruses that normally infect only birds and, less commonly, pigs. This bird flu is called highly pathogenic avian influenza h5n1. Fortunately, not many cases have spread like this and these strains dont seem to spread very quickly. If this new human influenza virus spreads and causes disease among people around the world, then there could. Of particular concern is bird flu or avian influenza. This disease can also spread to domestic poultry, including backyard flocks. Bird flu avian influenza is a disease caused by strains of influenza virus that primarily affects birds. Spread of avian flu raises concerns disease transmission. Pdf in 1918, a strain of influenza a virus caused a human pandemic resulting. Outbreaks of avian influenza h5n1 occurred among poultry in eight countries in asia cambodia, china, indonesia, japan, laos, south korea, thailand, and vietnam during late 2003 and early 2004. The crazz files exposing the dark truth of our world.
The threat of a new avian influenza virus causing a human pandemic is still. Fresh bird droppings onsurfaces, such as sidewalks and window sills, have not been shown to present a health risk for histoplasmosis because birds themselves do not appear to be. Birds can be infected by influenza a viruses and all of its subtypes. These viruses occur naturally among wild aquatic birds worldwide and can infect domestic poultry and other bird and animal species.
It is caused by any of the several types of swine influenza virus. The asian bird flu is unusual because it is extremely deadly for poultry, it has spread to many different countries in. To better understand this deadly virus, an expert group of researchers and virus hunters set out to search for the lost 1918 virus, sequence its genome, recreate the virus in a highly safe and regulated laboratory setting at cdc, and ultimately study its secrets to better prepare for future pandemics. Why bird flu has not caused a pandemic sciencedaily. A brief history of flu pandemics the abcs of influenza viruses, or all about the flu a bird flu primer h5n1 is on the move betting on bird flu. Surveillance of h5n1 viruses in live bird markets lbms during 2012 and 20 was carried out. Seasonal flu causes about 36,000 deaths per year in the u. Bird flu information for hunters and taxidermists avian influenza, or bird flu, is a virus that causes disease in chickens, turkeys, pheasants, quail, ducks, and geese.
This handout describes avian influenza and its symptoms. Differences between bird flu and swine flu bird flu vs. Influenza a h5n1 virus also called h5n1 virus is an influenza a virus subtype that occurs mainly in birds, is highly contagious among birds, and can be deadly to them. Details of the sequences as well as the alignments files and tree files for all. So we must be prepared in case this current bird flu changes and causes the next influenza pandemic. This tool kit has drawn on the avian influenza work experience and produced documents from. How infected backyard poultry could spread bird flu to people human infections with bird flu viruses rare but possible 1direct contact most common bird flu virus touching virus and then touching the eyes, nose or mouth infection can occur without touching poultry. Destruction of h5n1 avian influenza virus in meat and poultry. Avian influenza bird flu is an infection caused by viruses. Moderate influenza pandemic similar to 1957 and 1968 outbreaks could cost u. Avian influenza or bird flu is a disease of birds caused by type a strains of the influenza virus. The 1918 h1n1 flu virus caused the deadliest pandemic of the 20th century.
Bird infestations can prove more of a hazard than most people realize, as many carry more than 60 transmissible diseases this list continues to grow and is not exhaustive of all possible risks posed by pest animals. Everything you need to know about the next pandemic, contends that the worlds response to sars was inappropriate panic fueled by selfserving bureaucrats, and that we should all cool our jets over bird flu until its really and truly here. Up to now, human infection with bird flu has been very rare. The virus can be passed from birds to people, although transmission is considered rare. Economic effects of the 1918 influenza pandemic 19 the 1918 influenza pandemic in the news little rock, ark. Frequently asked questions on avian influenza hpsc. Howdy members, join adam 210420 for the crazz files podcast to break down all the latest news and events. Proper biosecurity measures can help keep flocks healthy and prevent bird flu and other diseases. Although h5n1, h7n9 and h5n6 dont infect people easily and arent. Above all else, bird flu, better named avian influenza, is an animal health problem. Right now, bird flu viruses do not usually infect people, and do not spread. Fever and signs and symptoms of acute respiratory infection. Avian influenza aithe bird fluis a virus that infects wild birds such as ducks, gulls and shorebirds and domestic poultry such as chickens, turkeys, ducks and geese.
Bird flu, also called avian influenza, is a viral infection that can infect not only birds, but also humans and other animals. How does the bird flu risk causing a pandemic flu in humans. Avian influenza is a viral disease that can affect bird species throughout the world. Birds are not capable of carrying either type b or c influenza viruses. Exposure to birds, bird faeces or feathers is the most likely way for a human to catch bird flu. The type with the greatest risk is highly pathogenic avian influenza hpai. Bird flu avian influenza, h5n1, h5n2, h5n8, h7n9 what is bird flu. The disease is transmitted via contact with an infected birds feces, or secretions from its nose, mouth or eyes. While this is still less deadly than the previous avian flu outbreak in china six years ago the h5n1 bird flu virus eventually killed more than 300 people after spreading from china to other. It is a highly contagious poultry disease, causes high mortality in poultry birds. But there are 4 strains that have caused concern in recent years. On tonights podcast show i continue to break down all the latest fearmongering and over the top propaganda surrounding the covid19.
Thats because they have heard about a severe form of bird flu that causes many bird deaths. Avian influenza or bird flu is an infection found in birds that is caused by the influenza a virus. Bird flu is similar to swine flu, dog flu, horse flu and human flu as an illness caused by strains of influenza viruses that have adapted to a specific host. Although the virus usually do not infect humans, more than 200. January 17, 2006 updated november 1, 2006 steven weisbart, ph.
There have been a few strains, mostly in china, that have leaped from bird to human and then on to humantohuman transmission. Flu viruses normally only infect one species and do not cause infection in other species. Avian influenza bird flu frequently asked questions. Outbreaks of avian influenza viruses later increased in frequency. Although it currently cannot be transmitted from person to person, the virus that causes bird flu could potentially evolve into a form that people could pass.
It was caused by an h1n1 virus with genes of avian origin. Travelers who plan to travel to areas of the world affected by avian influenza outbreaks in birds andor humans are advised to avoid close contact with poultry, especially diseased or dead birds, and to consume only adequately cooked meat. There is a flu for birds just as there is for humans and, as with people, some forms of the flu are worse than others. See a doctor immediately if you have recently returned from a country that has had an outbreak of bird flu and you get flu symptoms. The 1918 influenza pandemic was the most severe pandemic in recent history.
It is caused by the bird flu virus h5n1 influenza a virus. Vvnd is not present in the united states poultry industry at this time. Currently, people are only likely to contract bird. An external file that holds a picture, illustration, etc. Avian diseases transmissible to humans 2 avian influenza have been in areas where there is constant close contact between birds and humans or in cases where the humans were exposed to infected bird secretions. Avian influenza, known informally as avian flu or bird flu, is a variety of influenza caused by viruses adapted to birds. Bird flu avian influenza symptoms and causes mayo clinic. Influenza viruses that caused three important human pandemics.
Bird flu, a viral respiratory disease of poultry and other bird species, including migratory waterbirds, that can be transmitted to humans. The highly pathogenic avian influenza hpai ah5n1 virus is endemic in indonesian poultry and has caused sporadic human infection in indonesia since 2005. A vian influenza aithe bird fluis a virus that infects wild birds such as ducks, gulls, and shorebirds and domestic poultry such as chickens, turkeys, ducks, and geese. This can worsen to become a severe respiratory disease.
Aasian sian bbird ird fflulu university of minnesota. Bird flu viruses would have to make at least two simultaneous genetic mutations before they. Bird flu is spread between birds and from birds to humans. Avian influenza bird flu frequently asked questions for georgia duck hunters what is avian influenza or bird flu. These cases make it clear that bird flu in humans may not always look like typical cases of flu. Bird flu is an infection caused by avian influenza viruses, which are of different types a, b and c. In the late 1990s, a new strain of bird flu arose that was remarkable for its ability to cause severe disease and death, especially in domesticated birds such as ducks, chickens, or turkeys. Who is at risk of getting bird flu highly pathogenic ah5n1 avian influenza. Bird flu, also known as avian influenza, is a type a. Division of disease control what do i need to know.
Bird flu occurs naturally in wild waterfowl and can spread into domestic poultry, such as chickens, turkeys, ducks and geese. How infected backyard poultry could spread bird flu to people. How bird flu infects humans and why we dont spread it. Wild aquatic birds can be infected with avian influenza a viruses in their intestines and respiratory tract, but usually do not get. The bird flu virus is spread via the bodily fluids and feces of infected birds. History of 1918 flu pandemic pandemic influenza flu cdc. There are lots of different strains of bird flu virus. Pdf bird flu is an infectious disease of birds caused by influenza a h5n1 virus.
Although there is not universal consensus regarding where the virus originated, it spread worldwide during 19181919. Bird flu, or avian flu, is an infectious type of influenza that spreads among birds. There are many different types of bird flu, and some cause disease while others do not. Avian influenza refers to infection of birds with avian influenza type a viruses. On the other hand, swine flu is an influenza that affects pigs. Woodson is based upon 25 years of internal medicine practice and experience treating hundreds of flu patients.
Common poultry diseases 2 newcastle disease synonyms. From this foundation, he has concentrated the essence of lifesaving care of mild to severely ill flu patients at home in the bird flu manual. Bird flu is a type of viral infection which is contagious and affects birds. There is a flu for birds just as there is for humans and, as with people, some forms of. It can make chickens, ducks, turkeys, and other tame birds very sick. Bird flu avian influenza avian influenza, also called bird flu, is a disease of birds that is found in wild waterfowl such as ducks, geese, and swans. The illness has flulike symptoms of fever, cough, sore throat, and muscle aches, shortness of breath and even eye infections. The virus can infect poultry, as well as a wide variety of other birds including migratory waterfowl. Prophylactic antivirals are not indicated for patients who plan to travel to areas where avian influenza has been reported. Wild birds carry the viruses, but usually do not get sick from them. It explains how the flu is spread and how to keep it from spreading to others. To do this, the bird flu viruses must undergo further genetic alterations and borrow cell surface receptors from a human influenza strain. Asian bird flu is the name commonly used in the media to describe a deadly form of avian.