**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 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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**Breakthroughs in Influenza Vaccine Development** **Live Attenuated H5 Vaccine Candidates** Researchers have developed several live attenuated vaccine candidates against H5 avian influenza viruses, offering potential protection against highly contagious bird flu strains. **Efficacy Assessment of H9N2 Inactivated Vaccine** A recombinant H9N2 avian influenza virus inactivated vaccine has undergone efficacy testing, demonstrating its potential to prevent infection and disease caused by this zoonotic pathogen. **Reassortant H3N2 Vaccine with 4xM2e** A reassortant influenza H3N2 virus vaccine containing 4xM2e and a current strain-specific HA has been generated, enhancing its protective capabilities. **Live Attenuated Reassortant Vaccines for Human Vaccination** Live attenuated reassortant vaccines have been approved in the U.S. for human vaccination to control influenza viruses, providing long-lasting immunity. **Recombination Risk with H9N2 Virus** The H9N2 avian influenza virus carries a high risk of recombination with other viruses, underscoring the need for effective vaccines to prevent its spread. **Eurasian H5 Viruses Posing a Threat** Since December 2014, Eurasian-origin highly pathogenic avian influenza H5 viruses have emerged, including H5N1 and H5N2, requiring urgent vaccine development. **LAIV: A Promising Vaccine Strategy** Live attenuated cold-adapted reassortant influenza vaccine (LAIV) has emerged as a promising vaccine strategy due to its ability to induce robust immune responses. **H5N2 Vaccine Strain for Chicken Protection** Scientists have generated a reassortant avian influenza virus H5N2 vaccine strain capable of protecting chickens against this deadly virus, offering hope for poultry farmers.
**Avian Influenza Outbreak Raises Concerns for Poultry Industry** **Bird flu**, also known as Avian Influenza, is a viral infection that primarily affects wild water birds but can also spread to domestic poultry. The disease is caused by Type A influenza viruses, and it can range in severity from mild to severe. **Symptoms of Bird Flu in Birds:** Most wild birds infected with bird flu viruses do not exhibit any symptoms of illness. However, in some cases, birds may develop respiratory problems, swelling of the head and neck, and decreased egg production. **Transmission of Bird Flu:** Bird flu is spread through contact with infected birds or their bodily fluids. This can occur through direct contact, such as touching or handling infected birds, or through indirect contact, such as contact with contaminated surfaces or equipment. **Impact on Poultry Industry:** Outbreaks of bird flu can have a significant impact on the poultry industry. Infected birds can quickly spread the disease through their flocks, leading to extensive losses. In severe cases, entire flocks may need to be destroyed to prevent further spread. **Prevention and Control:** To prevent and control the spread of bird flu, poultry farmers should implement strict biosecurity measures, including: * Isolating birds from wild waterfowl * Practicing good hygiene and sanitation * Properly disposing of dead birds * Vaccinating poultry against bird flu **Public Health Concerns:** While bird flu primarily affects birds, it can also pose a risk to public health. In rare cases, humans can become infected with bird flu viruses through close contact with infected birds or their bodily fluids. Symptoms of bird flu in humans can range from mild respiratory symptoms to severe pneumonia and organ failure. **Current Outbreak:** Currently, there is an outbreak of bird flu affecting poultry farms in several countries around the world. Authorities are taking steps to contain the outbreak and prevent its spread. However, it remains a serious concern for the poultry industry and public health.
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**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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