Susan olender, md, is an assistant professor of medicine at columbia university college of physicians and surgeons in new york city. Bird flu is an infectious disease that has swept through the asian bird population. Occasionally, some of these viruses can infect domestic birds such as. Asian lineage avian influenza hpai ah5n1 and asian lineage ah7n9 viruses. Bird flu variant most commonly referred to wild aquatic birds. Avian influenza or bird flu is a disease of birds caused by type a strains of the influenza virus. Type a influenza viruses are the main causes of influenza outbreaks in both animals and humans. It is causing a worldwide outbreak in birds at the moment. Remember the management practices that will help keep your flock. Avian influenza ai avian flu bird flu airefers to the avian influenzatype a virus which causes infectionin birds. Currently, there is a flu virus in birds, called h5n1, that is of extreme. A vian influenza aithe bird flu is 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 also infect humans and other animals. Pandemic flu, however, will cause many more deaths than seasonal flu. Avian influenza and the h5n1 virus food and agriculture. To date, only h5 and h7 subtypes have the potential to become highly pathogenic hpai viruses, which cause high rates of poultry mortality and severe economic loss for poultry producers alexander, 2000. Also, 2 avian influenza viruses that are related to viruses known to cause severe disease in humans are of concern because of their perceived potential to cause severe disease in people. Treatment of people with bird flu will depend on their symptoms. No cases of humantohuman transmission of the virus has ever been reported in the periodic outbreaks of h5n1.
Authorities have mostly reported the disease in farmed. There are different types of avian flu, such as h5n1 and h7n9. Prevention and control of avian influenza in singapore. Avian flu sometimes called bird flu is a respiratory disease that usually infects birds, not people. Pandemics occur about every fifty years, the last of which happened 37 years ago in 1968. Read on to find out just how to combine multiple pdf files on macos and windows 10. Most ai viruses circulating through waterfowl are classified as low pathogenic lpai. Wild birds worldwide carry the viruses in their intestines, but usually do not get sick from them. Bird flu, also called avian influenza, is a viral infection that c. Avian influenza ai is an infectious disease of birds caused by type a influenza viruses of the orthomyxoviridae family figure 1. In the worst case, one or more such reassortants might have the worst properties of each virulence of the avian virus and transmission.
There are numerous types of avian influenza viruses that are carried by wild bird species throughout the world, but these viruses do not cause disease in these birds. Usda file photo hemorrhaging of the skin and legs is just one of the signs birds might exhibit when infected with the hpai virus. 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. The mild form is known as low pathogenicity avian influenza or lpai, and typically causes a respiratory.
Bird flu avian influenza has been an important topic in the news since it was first seen in humans. No bird flu risk for consumers from properly cooked poultry and eggs. See fears of undetected bird flu outbreaks mount, wall street journal, december 8, 2005, p. It is thought that most new strains of flu originate in china where many people live in crowded conditions, often in close contact with domesticated pigs and birds. Protecting workers from exposure avian influenza ai, or bird flu, is an infectious viral disease that can cause serious illness and death in domestic poultry. Mar 08, 2021 bird flu also termed avian influenza or avian influenza a is an illness that affects wild and domesticated birds that usually causes either little or no symptoms unless the bird population is susceptible, in which it may cause death in many birds within about 48 hours.
However, no birds from flocks with disease should enter the food chain. Learn all about bird flu and how it is different from other types of flu, including swine flu and dog flu. The two flu viruses of public health concern that have caused the most human infections are both bird flu viruses. The paint program can help you make new image files, but it cannot open document or pdf file. Destruction of h5n1 avian influenza virus in meat and poultry. Learn how bird flu spreads and the risks posed by antigenic drift and shift. The h5n1 strand of the flu virus is primarily transferred between migratory birds and, in rare cases, from birds to humans. However, flu viruses can become resistant viruses occur naturally among birds. Avian influenza or bird flu is a disease caused by a virus small infectious agent that occurs naturally among birds and at times infects pigs.
To combine pdf files into a single pdf document is easier than it looks. Selfobservation instructions for demobilizing bird flu. The activities in this teachers guide will help your students analyze the risks of bird flu and determine strategies for preventing a pandemic. It is necessary to consolidate in a practical format the main points of our. It has mainly been caused by close contact with live infected birds or their droppings, or following slaughtering, plucking, butchering or preparing. It is a highly contagious poultry disease, causes high mortality in poultry birds. Avian influenza ai is caused by influenza a virus of avian origin.
Pandemic flu would make lots of people sick all over the world. Influenza is characterized by two groups of surface. The h5n1 avian influenza virus was first documented as infecting humans in hong kong in 1997 and many of those infected died subsequently from the. Dec 17, 2020 bird flu, or avian flu, is a type of infection that occurs mainly in birds. These influenza viruses occur naturally among birds.
This means it can be viewed across multiple devices, regardless of the underlying operating system. People rarely get bird flu, but when they do it usually happens after contact with infected birds such as chickens, turkeys, geese, pigeons, and pheasants. Aug 15, 2020 a concern is that an avian flu virus and a human flu virus infecting the same cell could reassort their segments, producing progeny with all sorts of combinations of flu and human segments. By michelle rae uy 24 january 2020 knowing how to combine pdf files isnt reserved.
The virus on rare occasions has spread to poultry species, like chickens, turkeys, and domestic ducks, where it can cause mild to severe disease. Severe cases of bird flu can cause serious breathing problems including pneumonia. Avian influenza bird flu frequently asked questions what. With the next pandemic fast approaching, microbiologists have kept a watchful eye for any ripples in the water and the bird flu is what snagged their line. We currently regard the risk of bird flu occurring in the uk as high in wild birds, so further findings are possible, particularly in areas where many migratory species congregate. When bird flu does strike humans, it can be deadly. Avian influenza or bird flu is an infection found in birds that is caused by the influenza a virus. I paid for a pro membership specifically to enable this feature.
Although there have been lots of reports about the illness, do you know. Proper biosecurity measures can help keep flocks healthy and prevent bird flu and other diseases. Avian influenza ai viruses primarily circulate in wild waterfowl populations and are. Mar 19, 2015 bird flu cleaning and disinfection avian influenza ai is a group of viruses that can infect domestic and wild birds. Bird flu, otherwise known as avian influenza, has attracted widespread public and global attention. Table 1 economic impact of influenza h5n1 outbreaks in selected asian and african countries. Who no bird flu risk for consumers from properly cooked. More than a dozen types of bird flu have been identified, including the two strains that have most recently infected humans h5n1 and h7n9. Bird flu or avian influenza is a viral disease of birds it spreads in different countries by ignoring the different laws through the migratory birds. Ai viruses can be classified by their ability to cause illness and death.
Monitoring exposure to avian influenza viruses in wild mammals kaci k. The infection can result in the development of symptoms in birds, ranging from a mild illness to a rapidly fatal epidemic. Avian influenza ai, commonly called bird flu, is a disease found naturally among wild aquatic birds worldwide and can infect poultry and other bird and animal species. Bird flu 4 panel health protection surveillance centre. Avian influenza ai is a zoonotic disease that has garnered much attention in recent.
Highly pathogenic ai is extremely infectious, can cause high death loss and can spread rapidly from flock to flock. A pdf file is a portable document format file, developed by adobe systems. The vaccine prevents infection with human flu and can cut the risk of a person becoming sick with human flu and bird flu at the same time. Sometimes these avian viruses spread to chickens and cause outbreaks of bird flu that can devastate poultry farms. Avian flu is primarily spread by direct contact between healthy and infected birds. Bird flu also called avian flu is causing concern around the globe and prompting world leaders to pre pare for a possible pandemic. Avian influenza bird flu frequently asked questions for. H5n1 virus confirmed as the cause of death for a 25yearold female from sennoris district, fayum governorate, egypt. People rarely get bird flu, but when they do it usually happens after contact with infected birds such as. One is fairly common and is a mild illness, and the other is rare and deadly.
Avian influenza, or bird flu, is a contagious viral disease affecting the respiratory. The disease is known to us for more than a century. Usually bird flu virus is not passed from birds to people. The asian bird flu is caused by a hp h5n1 avian flu virus. In contrast, high pathogenicity ai hpai causes a severe and extremely contagious disease. Bird flu symptoms, outbreak, causes, transmission, vaccine. Like humans, birds have naturally occurring influenza flu viruses. Avian influenza bird flu march 2015 responses to questions from the general public q. Avian flu bird flu disease directory travelers health. These two viruses have caused severe illness and death in humans. Checks must be payable to the new jersey chapter healthcare financial management association. This article explains what pdfs are, how to open one, all the different ways. Some turks have bird flu virus but arent sick, new york times, january 11, 2006, p. In response to this ongoing threat, government has come together with countryside and.
Important to remember that this current avian flu is a bird disease. An oversized pdf file can be hard to send through email and may not upload onto certain file managers. Advertisement over the past few years, youve probably seen news stories with d. Important information for backyard poultry owners protect.
The h5n1 flu virus bird flu could become a pandemic flu. There are many different subtypes of type a influenza viruses, which are distinguished by the different types of hemagglutinin. These include hpai ah5 and ah7 viruses identified in birds in the united states during 2015 and 2016. Human infection with bird flu is rare, but when it occurs, it is often fatal. Studies suggest that prescriptian medicines approved bird flu is an infection caused by avian bird influenza for human flu viruses may werk in preventing bird flu flu viruses different from human flu viruses.
Avian influenza bird flu avian influenza is an infection caused by avian bird influenza flu viruses. Research on zoonotic animal origin influenza flu viruses. Wild waterfowl, especially ducks, are a socalled natural reservoir of influenza viruses, including the bird flu. The animal and plant health agency and staff at the site will continue to monitor and the wild bird surveillance programme is underway. But since 1997, some people have become sick with this serious, deadly kind of bird flu. You can use the tools in paint to add something to a different document.
Depending on how serious the symptoms, treatment may include supportive care, use of antiviral medicines, andor hospitalization. Ads should be submitted as print ready cmyk pdf files along with hard copy. Avian influenza or bird flu is a contagious animal disease that infects birds and some mammals. Avian influenza bird flu frequently asked questions. Luckily, there are lots of free and paid tools that can compress a pdf file in just a few easy steps. The virus spreads from bird to bird from the saliva, nasal secretions. Bird flu would have to change form to become pandemic flu. Pdf file or convert a pdf file to docx, jpg, or other file format. There are many types of avian flu viruses that are carried by wild birds throughout the world, but these viruses do not usually cause disease in these birds. Up to now, human infection with bird flu has been very rare.
Bird flu cleaning and disinfection avian influenza ai is a group of viruses that can infect domestic and wild birds. Depending on the type of scanner you have, you might only be able to scan one page of a document at a time. Important information for backyard poultry owners avian influenza ai, or bird flu. In poultry, bird flu viruses can cause two different types of disease. Bird flu is an infection caused by avian bird influenza flu viruses. Avian flu is primarily spread by direct contact between healthy and infected birds through saliva, nasal secretions, and feces or through.
One of the fun things about computers is playing with programs like paint. Franklin united states department of agriculture, wildlife services, national wildlife research center, fort collins, co, 80521, usa abstract 1. Usda file photo nasal discharge a runny nose can be a sign of hpai. Most of these infections have been in asian countries among people who have had close contact with birds raised on farms. Frequently asked questions on avian influenza health protection. Pdf is a hugely popular format for documents simply because it is independent of the hardware or application used to create that file. Bird flu avian influenza is an illness that affects wild and domesticated birds and typically causes either little or no symptoms unless the bird population is susceptible, in which case it may cause death in many birds within about 48 hours. Bird flu avian influenza symptoms and causes mayo clinic.
Type a strains of the influenza virus, including h5n1, cause avian flu, or bird flu. Sep 29, 2018 bird flu, also called avian influenza, is a viral infection that can infect not only birds, but also humans and other animals. The pandemic of 1918 killed approximately 40 million people worldwide. Above all else, bird flu, better named avian influenza, is an animal health problem. Hong kong found the h5n1 bird flu virus at a poultry stall in sham shui po. The h5n1 virus is the one you hear most about on the news. There is a flu for birds just as there is for humans and, as with people, some forms of the flu. The h5n1 avian influenza virus was first documented as infecting humans in hong kong in 1997. Jan 05, 2021 bird flu also called avian influenza is an infectious disease of birds caused by type a strains of the influenza virus.
If your scanner saves files as pdf portbale document format files, the potential exists to merge the individual files into one doc. Wild aquatic birds, known as waterfowl, are natural reservoirs of many types of ai and can carry and transmit these viruses without showing signs of disease. Pdf in 1918, a strain of influenza a virus caused a human pandemic resulting in the deaths of. Know symptoms, causes, prevention of avian influenza bird flu outbreak. Most bird flu viruses dont infect humans, but some strains particularly h5n1 and h7n9 can, in rare cases.
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