What are the characteristics of avian influenza in animals, and what are the main animal infections

Symptoms of avian influenza in poultry: Symptoms of avian influenza vary according to the breed of infected birds, age, sex, degree of concurrent infection, virulence of the virus and environmental factors, and are mainly manifested by abnormalities of the respiratory, digestive, reproductive or nervous systems. Common symptoms are: depressed chickens, reduced feed consumption, and emaciation; The nesting ability of hens is enhanced, and the egg production is reduced; mild to severe respiratory symptoms, including coughing, sneezing, and profuse tearing; Edema of the head and face, nervous disorders and diarrhea.

Avian influenza is mainly transmitted from bird to bird. For human prevention, as long as there is no direct contact with sick chickens or their excrement, they will not be infected. As long as the chicken and eggs are cooked and eaten, they will never be infected, because the virus will all die in an environment above 70 degrees.

Therefore, as long as it is not a high-risk group such as farmers, eating cooked poultry food will never be infected, rest assuredIn addition, we should first develop good living habits, especially in families with children and the elderly, no matter how cold the day is, it is best to open the windows regularly twice a day for ventilation for 30 minutes each time. Ventilation is best set at 9 a.m

00-10:00 and 3:00-4:00 p.m

00, because the virus can be inactivated in 40-48 hours under direct sunlight, and if it is directly irradiated with ultraviolet light, its infectivity can be quickly destroyed. Moreover, fresh air has the effect of diluting viruses and cleaning indoor air; Develop good hygiene habits, when cooking, must adhere to the separation of raw and cooked, such as cutting raw chicken board and knife can no longer cut cooked food, otherwise the cooked food directly into the mouth is easy to be stained with germs, if the raw chicken happens to be a sick chicken, then people are likely to be infected with avian influenza; Don't drink raw water, chicken and eggs must be cooked and eaten. Professor Jiang said that especially some people who eat hot pot and are greedy for "freshness", often send the chicken to their mouths before it changes color in the pot.

Professor Jiang said that the avian influenza virus is highly resistant to low temperatures, and can survive for 4 days in 22 degree water, more than 30 days in 0 degree water, and 3 months in feces. The avian influenza virus is sensitive to heat and can be inactivated by boiling water above 100 degrees for 2 minutes.

The light of wisdom tells you: swine flu, avian flu, and SARS are actually mutated cold viruses! It is the plague of modernity, which currently infects 2,498 people in Mexico, 4,129 in more than a dozen countries including the United States, and 430 schools in the United States!

The main symptoms of swine flu are: red eyes, headache and runny nose and difficulty breathing, intense coughing, and mucus from the eyes and nose! If you don't deal with it in time, you can die at any time!

3. Entry must be declared to the inspection and quarantine agency! 4. If you find a dangerous situation, immediately call 120 to isolate to the medical unit**! 5. The light of wisdom requires you to be diligent in hygiene for your own health and the happiness of your family!

Wishing you health and happiness!

Many poultry and wild birds are susceptible to avian influenza viruses, such as chickens, ducks, geese, quails, pigeons, parrots, peacocks, gulls, swallows, herons, bar-headed geese, etc.

In addition to poultry, pigs and horses can also be infected with avian influenza virus.

Cats, dogs, rats, etc. are less likely to be infected with avian influenza, but the possibility of infection is not ruled out.

Avian influenza viruses are highly species-specific, but can cross species barriers to infect humans in rare cases.

Guidance: Avian influenza, the full name of avian avian epidemic, is an animal infectious disease caused by a virus, usually only infecting birds, and rarely infecting pigs.

It is mainly transmitted between poultry (poultry, wild birds), and can be infected but not transmitted by humans, pigs, dogs, and certain aquatic mammals (dolphins, seals, etc.).

Recent studies have found that the feces and feathers of exotic birds, especially birds, carry the pathogen, and sheep have a similar condition, which is suspected to be a lesion, so it is best to eat less mutton in the near future (v

Poultry animals, such as chickens and ducks

There are two symptoms of illness in poultry infected with H7N9:

Low-pathogenic avian influenza causes only mild symptoms, sometimes with only wrinkled feathers, messy feathers and decreased egg production.

Symptoms of highly pathogenic avian influenza in poultry are sudden deaths, high mortality rates, and sharp declines in feed and water consumption and egg production. The sick chicken is extremely depressed, with edema of the head and face, accompanied by cyanosis of the cockscomb, bleeding of the scales of the feet, and nervous disorders. Waterfowl such as ducks and geese have obvious symptoms of nerves and diarrhea, and can cause corneal inflammation and even blindness.

Highly pathogenic avian influenza (HPAI) can be suspected once the above symptoms are detected in poultry farms.

Avian disease experts say that the incubation period of avian influenza varies greatly, from a few hours to a few days, and its length is related to the pathogenicity of the virus, the amount of virus infected, the route of infection and the breed of infected birds. When infected with highly pathogenic viruses, the morbidity and mortality of poultry can reach 100%. The outbreak of the H5N1 influenza virus was very sudden, and poultry often did not show any abnormal symptoms before the incident, and died quickly and in large numbers as soon as the disease occurred.

People with avian influenza will have persistent high fever, which is not the case in patients with common influenza.

Maintain a positive mindset and don't overthink it.

Animals with bird flu are not easy to see, so look at the coat color first. It might be a bit of a problem to be a little dull with the usual ones...

First of all, it's a cold... Do a check-up.

This is very professional, and most people don't understand it.

After humans suffer from avian influenza, the incubation period is generally within 7 days, and the early symptoms are very similar to other influenzas, mainly manifested as fever, runny nose, nasal congestion, cough, sore throat, headache, general malaise, some patients may have nausea, abdominal pain, diarrhea, watery stools and other digestive symptoms, some patients can see ocular conjunctivitis, most of the body temperature lasts above 39, some patients chest X-ray will also show unilateral or bilateral pneumonia, a few patients with pleural effusion. Most patients have a good future, short course of disease, fast recovery, and no sequelae, but a small number of patients, especially older and late patients, will rapidly develop into progressive pneumonia, acute respiratory distress syndrome, pulmonary hemorrhage, pleural effusion, pancytopenia, renal failure, septic shock and Reye syndrome and other complications and death. Experts recommend that patients should seek medical attention as soon as they develop the above symptoms, and if they are suspected of H5N1 virus infection, they should be hospitalized and isolated immediately and report the epidemic to prevent the deterioration of the condition and the spread of infection.

Fever, runny nose, nasal congestion, cough, sore throat, headache, general malaise Some patients may have gastrointestinal symptoms such as nausea, abdominal pain, diarrhea, and watery stools Some patients may see ocular conjunctivitis, and most of them have a body temperature of more than 39 Some patients will also show unilateral or bilateral pneumonia on chest X-ray, and a few patients have pleural effusion Most patients have good post-recovery, short course of disease, fast recovery, and no sequelae A small number of patients, especially those who are older and too late, will rapidly develop into progressive pneumonia. Acute respiratory distress syndrome, pulmonary hemorrhage, pleural effusion.

Viruses that can cause human infection with avian influenza have been found as long as they are subtypes H5N1, H7N7 and H9N2. Patients infected with the H9N2 subtype usually have only mild symptoms of upper respiratory tract infection, and some patients do not have any symptoms at all; Patients infected with the H7N7 subtype predominantly present with conjunctivitis; Patients with severe disease are generally infected with the H5N1 subtype virus. The patient has an acute onset and early manifestations resemble common influenza.

It is mainly fever, most of which lasts above 39, and the fever lasts for 1-7 days, generally 3-4 days, and can be accompanied by runny nose, nasal congestion, cough, sore throat, headache, muscle aches and general malaise. Some patients may have gastrointestinal symptoms such as nausea, abdominal pain, diarrhea, and watery stools. Severe patients may develop a variety of complications such as pneumonia, acute respiratory distress syndrome, pulmonary hemorrhage, pleural effusion, pancytopenia, renal failure, sepsis, shock, and Reye syndrome.

This year, there was an increase in the number of sick birds, including chickens, ducks, geese, turkeys, migratory birds, and ornamental birds. Both years of the outbreak were caused by the highly pathogenic 5 1 subtype avian influenza virus. Another feature is that this year's avian influenza outbreaks are basically related to migratory birds, and the virulence of avian influenza viruses against waterfowl is becoming stronger.

Avian flu is the abbreviation of avian epidemic ** source of the epidemic, it is a disease caused by influenza type Abai.

A subtype of DU virus (also known as avian influenza virus) causes a contagious disease of DAO, which is classified as a Class A infectious disease by the International Office of Animal Epidemiology, also known as true chicken plague or European chicken plague. According to the type of pathogen, avian influenza can be divided into three categories: highly pathogenic, low pathogenic and non-pathogenic avian influenza.

Avian influenza is an avian epidemic

Abbreviation. Highly pathogenic Zhi avian influenza is an acute, fever-recovering and highly contact infectious disease in chickens caused by influenza A DAO virus, which is classified as a Class A infectious disease by the World Organization for Animal Health and a Class I infectious disease in China, also known as true chicken plague or European chicken plague. Not only chickens, but also some other poultry such as ducks, pigeons and wild birds can be infected with avian influenza.

The incubation period for avian influenza ranges from a few hours to several days and can be up to 21 days.

According to the pathogenic characteristics of pathogens, avian influenza can be divided into three categories: non-pathogenic, low pathogenicity and high pathogenicity. Non-pathogenic avian influenza does not cause noticeable symptoms and only induces the production of antibodies in the bird. Low-pathogenic avian influenza can cause mild respiratory symptoms, reduced food intake, diarrhoea, decreased egg production, and sporadic deaths.

Highly pathogenic avian influenza is the most severe, usually without typical clinical symptoms, with acute onset, elevated body temperature, loss of appetite, accompanied by hemorrhagic syndrome, and subsequent death, with a mortality rate of up to 100%, causing a devastating blow to poultry enterprises.

Cockscomb and meat to come.

Bruising, mental addiction, dyspnea, swollen eyes and tears, decreased food intake, mucus from the mouth, decreased egg laying rate, increased deformed eggs, white eggshells and sporadic deaths. The lungs are black and purple, bleeding at the base of the glandular stomach, bleeding in the pancreas (with obvious edges), white necrotic spots or translucent necrotic foci are characteristic lesions, kidney hemorrhage, broiler spotted kidneys, and some have convulsions, head and neck twist, head and neck tremor, dyskinesia, paralysis and other viral symptoms.

The disease spreads rapidly, the mortality rate is high, the sick chickens have swollen heads and swollen faces, and the scales of the feet are bleeding ......