These viruses occur naturally among wild aquatic birds worldwide and can infect domestic poultry and other bird and animal species. Highly pathogenic avian influenza HPAI initially known as fowl plague is a complex infection of birds caused by viruses of the Influenza A genus.
Based on the pathobiological effect in chickens AI viruses AIV are categorised as low pathogenic LPAIV or highly pathogenic HPAIV.
Avian influenza symptoms. Symptoms associated with avian influenza can include. Who is at risk for avian influenza. In many patients infected by A H5 or A H7N9 avian influenza viruses the disease has an aggressive clinical course.
Typically LPAIV cause asymptomatic infections in wild aquatic birds but when introduced. Wild aquatic birds can be infected with avian influenza A viruses in their intestines and respiratory tract but usually do not get sick. Alerting them ahead of time will allow them to take.
Bird flu avian flu or avian influenza refers to strains of influenza that primarily affect wild and domesticated birds. Avian influenza AI viruses vary in their ability to produce infection disease and death in different bird species. In more serious cases pneumonia and acute respiratory distress can occur.
An outbreak of bird flu is sweeping through the central province of Quang Nam felling fowls and forcing authorities to cull a further 26660 birds. Due to excessive economical losses to the. Bird flu is named H or N depending on the proteins found on the surface of the virus.
Lesions in the respiratory tract typically include congestion and inflammation of the trachea and lungs. Rapid decrease in feed and water intake. Avian influenza refers to infection of birds with avian influenza Type A viruses.
What are the symptoms. It may start out with normal flu-like symptoms. Low pathogenicity avian influenza viruses typically produce respiratory signs such as sneezing coughing ocular and nasal discharge and swollen infraorbital sinuses in poultry.
Recognizing Bird Flu Symptoms in Humans. Symptoms can be mild can be severe which can potentially put lives at risk. When avian influenza infects humans symptoms may range from mild upper respiratory infection fever and cough to severe pneumonia acute respiratory distress syndrome difficulty breathing shock and even death.
Bird flu symptoms include fever cough sore throat and. Symptoms such as fever coughing sore throat muscle aches and conjunctivitis may result from infection. HPAI in poultry is characterized by a sudden onset severe illness of a short duration and a mortality approaching virtually 100 in vulnerable species.
Avian Influenza Symptoms When a person contracted a virus caused by bird flu he or she will experience various symptoms. Swelling of the head. The most common kind of bird flu is the H5N1 strain.
If youre exposed to bird flu you should notify staff before you arrive at the doctors office or hospital. Common initial symptoms are high fever greater than or equal to 38C and cough followed by symptoms of lower respiratory tract involvement including dyspnoea or. Here are some of the symptoms of bird flu that may be experienced by the sufferer.
Bird flu or avian influenza is a viral infection spread from bird to bird. Although its rare for humans to contract avian flu it can happen. Purple discolouration of the comb and wattles.
Sinusitis is common in domestic ducks quail and turkeys. They destroyed 7000 eggs and 1250 ducks Monday after finding signs of the H5N1 virus that causes the disease.
