**Avian Influenza Surveillance Dashboard Update** The USDA's Wild Bird Avian Influenza Surveillance Dashboard will be updated weekly on Wednesdays to reflect the latest data on avian influenza in North America. **New CDC Recommendations** The CDC has developed new interim recommendations for the prevention, monitoring, and public health response to avian influenza. These recommendations are based on the latest scientific data and best practices. **What is Avian Influenza?** Avian influenza (AI) is caused by an influenza type A virus that can infect poultry and other birds. The virus can cause a range of clinical signs, from mild respiratory symptoms to severe disease and death. **Distribution of Highly Pathogenic Avian Influenza** The USDA is currently tracking the distribution of highly pathogenic avian influenza (HPAI) in North America. HPAI is a highly contagious and deadly form of AI that can cause significant economic losses to the poultry industry. **USDA Resources** The USDA provides a variety of resources on avian influenza, including information on prevention, control, and response. These resources are available online at the USDA website. **For More Information** For more information on avian influenza, please visit the following websites: * USDA Wild Bird Avian Influenza Surveillance Dashboard: https://www.aphis.usda.gov/aphis/ourfocus/animalhealth/animal-disease-information/avian/avian-influenza/wild-birds * CDC Avian Influenza: https://www.cdc.gov/flu/avianflu/index.htm * USDA Avian Influenza: https://www.usda.gov/avian-influenza
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**Avian Influenza Surveillance Dashboard Update** The USDA's Wild Bird Avian Influenza Surveillance Dashboard will be updated weekly on Wednesdays to reflect the latest data on avian influenza in North America. **New CDC Recommendations** The CDC has developed new interim recommendations for the prevention, monitoring, and public health response to avian influenza. These recommendations are based on the latest scientific data and best practices. **What is Avian Influenza?** Avian influenza (AI) is caused by an influenza type A virus that can infect poultry and other birds. The virus can cause a range of clinical signs, from mild respiratory symptoms to severe disease and death. **Distribution of Highly Pathogenic Avian Influenza** The USDA is currently tracking the distribution of highly pathogenic avian influenza (HPAI) in North America. HPAI is a highly contagious and deadly form of AI that can cause significant economic losses to the poultry industry. **USDA Resources** The USDA provides a variety of resources on avian influenza, including information on prevention, control, and response. These resources are available online at the USDA website. **For More Information** For more information on avian influenza, please visit the following websites: * USDA Wild Bird Avian Influenza Surveillance Dashboard: https://www.aphis.usda.gov/aphis/ourfocus/animalhealth/animal-disease-information/avian/avian-influenza/wild-birds * CDC Avian Influenza: https://www.cdc.gov/flu/avianflu/index.htm * USDA Avian Influenza: https://www.usda.gov/avian-influenza
**Avian Influenza Outbreak Affects Dairy Cows in the US** **Highly Pathogenic and Low Pathogenic Avian Influenza** Avian influenza, commonly known as bird flu, is a viral infection prevalent in domestic poultry, pet zoo birds, and wild birds. The virus comes in two forms: highly pathogenic avian influenza (HPAI) and low pathogenic avian influenza (LPAI). While LPAI typically causes mild symptoms in poultry, HPAI can be deadly and has even infected mammals, including humans. **Recent Outbreak in the US** Recently, an outbreak of bird flu has affected dairy cows in the United States. This has raised concerns among scientists and industry experts due to its unusual occurrence. Avian influenza is primarily known to spread within bird populations, but its recent spread to dairy cattle has sparked concerns about the potential for further transmission. **Impacts on Poultry Industry and Trade** Avian influenza poses a significant threat to the poultry industry and animal health. Infected birds can spread the virus to other flocks, resulting in economic losses for farmers. The virus can also affect international trade, as countries may ban the import of poultry and poultry products from affected regions. **Prevention and Control** Preventing the spread of avian influenza requires strict biosecurity measures, such as quarantining infected animals, disinfecting equipment, and limiting contact with wild birds. Vaccination programs are also used to reduce the severity of symptoms and protect bird populations. **Conclusion** The outbreak of bird flu among dairy cows in the US highlights the ongoing threat of this virus to both animals and humans. While avian influenza primarily affects birds, its sporadic transmission to mammals raises concerns about its potential implications for public health. Continued surveillance, research, and preventive measures are essential to mitigate the spread and impact of this contagious disease.
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**Bird Flu Evolution Creates Distinct Avian Influenza Lineages** Researchers have discovered that avian influenza A viruses infecting birds have evolved into unique genetic lineages. This discovery is based on the work of several scientific studies: * **Avian influenza A virus H7N7 associated with human conjunctivitis and a fatal case of acute respiratory distress syndrome** by Fouchier RA et al. * **Dominant subtype switch in avian influenza viruses during 2016-2019 in China** by Yuhai Bi et al. * **Prediction of avian influenza virus subtype** by Hyeon-Chun Park et al. These studies indicate that humans can be infected by various influenza viruses, including those from birds, swine, and other animals. The evolution of distinct lineages among avian influenza viruses suggests that these viruses are constantly adapting and poses potential risks to human health. Further research is needed to understand the implications of these findings and develop effective strategies to prevent avian influenza transmission to humans.
**Avian Influenza: Symptoms, Variants, and Recent Cases** **Symptoms of Bird Flu in Humans** Bird flu, also known as avian influenza, can cause a range of symptoms in humans. These symptoms may vary, but typically include those common to the flu, such as: * Fever * Cough * Chills * Muscle aches * Fatigue **Avian Influenza Virus A (H5N1)** The highly pathogenic avian influenza virus A (H5N1) emerged in 1996 and was initially identified in southern China. This virus has caused severe outbreaks in poultry worldwide and has also infected humans, leading to fatalities. **Avian Influenza Virus A (H3N8)** In April 2022, the first human infection with the avian influenza virus A (H3N8) was reported. This infection occurred in China and resulted in mild symptoms in the patient. **Important Information on Avian Influenza** For the latest information on avian influenza, including symptoms, variants, and recent cases, it is crucial to consult reputable sources such as: * World Health Organization (WHO) * Centers for Disease Control and Prevention (CDC) * Food and Agriculture Organization of the United Nations (FAO) * Veterinary authorities in your country By staying informed, you can take necessary precautions to protect yourself and others from this potentially serious infection.
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