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Etiology of swine flu: Swine flu is an acute respiratory infection caused by swine flu virus. The clinical feature is sudden onset and rapid spread of the whole group. The virus mainly exists in the respiratory secretions of sick pigs and infected pigs, which pollutes the environment after being discharged. Feeding utensils, leftovers, residual water, sick pigs, mice, mosquito and fly bites, droplets and air circulation are all the transmission routes of the disease. It is easy to happen in summer, autumn and early spring when the weather is changeable. The pig cold is mostly caused by sudden change of weather, hot and cold, malnutrition, emaciation, camping in the rain, cold wind and so on, and will not be transmitted to other pigs.

Symptoms of swine flu: at first, swine flu loses appetite or does not eat, conjunctiva flushes, sticky secretions flow out of the nose, body temperature rises rapidly to 40.5-42.5℃, people are listless, lose appetite, sometimes people drink a few mouthfuls of water, cough, and purulent secretions flow out of the nose. Breathing and heartbeat are accelerated, and finally severe asthma, abdominal or dog sitting breathing. The stool is difficult to develop into constipation, and the urine is short and yellow. Limbs are weak and unwilling to move. Such as secondary pasteurellosis and pneumococcal disease. The mortality rate can exceed 10%. Pigs suffer from cold, eat less, feel depressed, have a body temperature of about 40℃, a runny nose, sometimes cough, chills in ears and lower limbs, dull fur, normal urination and defecation, and almost no death.

Prevention of swine flu: isolate the two diseases in time, disinfect pens and feeding utensils with 2% caustic soda solution, bury scraps and water deeply or without pollution, and add 0.05% moroxydine hydrochloride (valin) to pig diet for feeding 1 week; You can also use 250 grams of mung bean, Bupleurum Radix Isatidis 100 grams, and decoction 10 kg for pigs to drink, which has a good preventive effect.

Treatment of swine flu: symptomatic treatment should be given to sick pigs to prevent secondary infection. Optional: 15% moroxydine hydrochloride injection, 25 mg per kilogram of pig body weight, intramuscular injection, twice a day, continuous injection for 2 days. 30% metamizole sodium injection, 30 mg per kg of pig's body weight, intramuscular injection, twice a day for 2 consecutive days. If the whole group is infected, Chinese medicine can be given. Chinese medicine formula: Schizonepeta, Lonicera japonica, Folium Isatidis, Bupleuri Radix, Radix Puerariae, Scutellariae Radix, Akebia Akebia, Radix Isatidis, Glycyrrhrizae Radix and Zingiberis Rhizoma each 25-50g (each head weighs about 50kg). Sun-drying the medicine, pulverizing into fine powder, and mixing with feed. If you have no appetite, you can take it by decocting, usually 1 dose.

How to prevent swine flu

In the area where swine flu broke out in Mexico, dozens of people died and more than 1000 people were infected. In the United States, at least eight people have been confirmed infected. They are all in California and Texas, and one of them is in hospital. Here are some questions and answers about diseases:

Answer: Bamboo Dew-Jianghu Heroes Level 8 4-27 08:07

Following the emergence of bird flu, there has also been a swine flu epidemic in Mexico, which has killed at least 20 people. However, not many people know about this disease. In view of this situation, this paper focuses on the symptoms and prevention of swine flu. & ltbr & gt& ltbr & gt Etiology of swine flu: Swine flu is an acute respiratory infectious disease caused by swine flu virus. The clinical feature is sudden onset and rapid spread of the whole group. The virus mainly exists in the respiratory secretions of sick pigs and infected pigs, which pollutes the environment after being discharged. Feeding utensils, leftovers, residual water, sick pigs, mice, mosquito and fly bites, droplets and air circulation are all the transmission routes of the disease. It is easy to happen in summer, autumn and early spring when the weather is changeable. The pig cold is mostly caused by sudden change of weather, hot and cold, malnutrition, emaciation, camping in the rain, cold wind and so on, and will not be transmitted to other pigs. & ltbr & gt& ltbr & gt Symptoms of swine flu: At first, swine flu lost appetite or did not eat, conjunctiva flushed, sticky secretions flowed out of the nose, body temperature quickly rose to 40.5-42.5℃, people were listless, lost appetite, and sometimes people drank a few mouthfuls of water, coughed, and purulent secretions flowed out of the nose. Breathing and heartbeat are accelerated, and finally severe asthma, abdominal or dog sitting breathing. The stool is difficult to develop into constipation, and the urine is short and yellow. Limbs are weak and unwilling to move. Such as secondary pasteurellosis and pneumococcal disease. The mortality rate can exceed 10%. Pigs suffer from cold, eat less, feel depressed, have a body temperature of about 40℃, a runny nose, sometimes cough, chills in ears and lower limbs, dull fur, normal urination and defecation, and almost no death. & ltbr & gt& ltbr & gt to prevent swine flu: isolate the two diseases in time, disinfect pens and feeding utensils with 2% caustic soda solution, bury scraps and water deeply or without pollution, and add 0.05% moroxydine hydrochloride (valin) to the pig diet for feeding 1 week; You can also use 250 grams of mung bean, Bupleurum Radix Isatidis 100 grams, and decoction 10 kg for pigs to drink, which has a good preventive effect. & ltbr & gt& ltbr & gt Treatment of swine flu: Symptomatic treatment should be given to sick pigs to prevent secondary infection. Optional: 15% moroxydine hydrochloride injection, 25 mg per kilogram of pig body weight, intramuscular injection, twice a day, continuous injection for 2 days. 30% metamizole sodium injection, 30 mg per kg of pig's body weight, intramuscular injection, twice a day for 2 consecutive days. If the whole group is infected, Chinese medicine can be given. Chinese medicine formula: Schizonepeta, Lonicera japonica, Folium Isatidis, Bupleuri Radix, Radix Puerariae, Scutellariae Radix, Akebia Akebia, Radix Isatidis, Glycyrrhrizae Radix and Zingiberis Rhizoma each 25-50g (each head weighs about 50kg). Sun-drying the medicine, pulverizing into fine powder, and mixing with feed. If you have no appetite, you can take it by decocting, usually 1 dose. & ltbr & gt & ltbr & gt & ltbr & gt & ltbr & gt how to prevent swine flu?

Diagnostic points and epidemic characteristics Pigs of all ages, sexes and breeds are susceptible to this virus. The epidemic of the disease has obvious seasonality, and it is easy to occur in late autumn, early spring and cold winter with changeable weather. The disease spreads rapidly, usually endemic or epidemic. The incidence of this disease is high and the mortality is low (4%- 10%). Sick pigs and infected pigs are the sources of swine flu infection, and pigs are infected 6-8 weeks after recovery.

Clinical features The incubation period of this disease is very short, ranging from several hours to several days, with an average natural onset of 4 days. At the initial stage of the disease, the body temperature of sick pigs suddenly increased by 40.3℃ ~ 465,438 0.5℃, and they were anorexia or anorexia, extremely weak or even collapsed, and often lay on the ground. Shortness of breath, abdominal breathing, paroxysmal cough. Mucus flows from the eyes and nose, and nasal secretions sometimes carry blood. When sick pigs lie together, they have difficulty in moving, feel stiff and painful muscles, spasm of diaphragm and frustrated breathing, which is commonly called hiccups. If there is a secondary infection, the condition will be aggravated, and cellulose hemorrhagic pneumonia or enteritis will occur. Sows are infected during pregnancy, and the piglets born are very ill 2-5 days after delivery, and some die during lactation and before and after weaning.

Pathological changes of swine flu are mainly in respiratory organs. The mucosa of nose, pharynx, larynx, trachea and bronchus is congested and swollen, and the surface is covered with viscous liquid, and bronchioles and bronchioles are filled with foam-like exudates. A large amount of slurry mixed with cellulose was accumulated in the chest cavity and pericardium cavity. Pulmonary lesions often occur in the back and base of the cusp, heart, middle leaf and diaphragm, and have obvious boundaries with surrounding tissues. The color is from red to purple, it collapses and is firm, and its toughness is like leather. Spleen enlargement, cervical lymph nodes, mediastinal lymph nodes and bronchial lymph nodes are swollen and juicy.

The differential diagnosis of swine flu does not always appear in a typical form. It is very similar to other respiratory diseases, so the clinical diagnosis can only be hypothetical. In autumn or early winter, respiratory diseases in pigs may be suspected as swine flu.

The outbreak of upper respiratory syndrome, including conjunctivitis, sneezing and coughing, and low mortality rate can distinguish swine flu from other upper respiratory diseases in pigs. In differential diagnosis, we should pay attention to the difference between pig asthma and this disease, which is the most confusing.

Prevention and treatment measures There is no effective vaccine and special treatment for the disease. It is important to take good care and keep the pigsty clean, dry and warm, without thieves. Provide enough clean drinking water and limit the supply of feed in the first few days of rehabilitation. Don't disturb or move sick pigs during the onset to reduce stress death.

Interpersonal transmission of swine flu virus 1976 American swine flu locals talk about pig color change

1In February, 976, an influenza epidemic caused by swine (H 1N 1) subtype strain occurred in the new barracks in Fort Dix, New Jersey, USA. About 200 people were infected and one died. At that time, if President Ford wanted to be re-elected, he personally approved $654.38+35 billion to prepare swine flu vaccine for universal immunization, while other countries held a wait-and-see attitude. As a result, the United States made a mistake in speculation, and the vaccine ended in failure, which caused many objections and lawsuits. Ford approved the risky plan for the presidential election, and pig farms protested to change swine flu to New Jersey flu to prevent residents from talking about pigs. The analysis of this flu and pathogen shows that swine flu virus is directly transmitted from pigs to people.

In the past, there were few cases of human infection with swine flu virus, and swine flu virus usually did not spread from person to person. From 65438+ in February 2005 to 65438+ in October this year, only 12 cases of human swine flu were found in the United States, of which 1 1 people had direct contact with pigs.

In April 2009, a large-scale swine flu broke out in Mexico. Most patients in the United States and Mexico have never been exposed to pigs. At this stage, the Mexican government has ruled out the possibility of eating pork infected with the virus [1]. The virus has been confirmed to spread in the form of interpersonal transmission. In terms of interpersonal transmission, scientists pointed out that sneezing, coughing and physical contact may lead to the spread of the new swine flu virus among people.

Michael Osterham of the University of Minnesota, a famous American flu expert, said on the 24th that the spread of influenza virus is amazing, and when people find infected people, they may have missed the best opportunity to control the spread of this new virus. Michael Osterham is worried that tourists who have recently entered and exited Mexico City International Airport may carry the virus around the world.

[Edit this paragraph] Symptoms of swine flu

The symptoms of human infection with swine flu are similar to those of a cold, and patients may have fever, cough, fatigue, loss of appetite and other symptoms. In terms of prevention, there is no need to get together for flu vaccines at this stage, because seasonal flu vaccines have no effect on preventing swine flu. The correct way is to develop good personal hygiene habits, get enough sleep, exercise diligently, reduce stress and have adequate nutrition; Wash your hands frequently, especially after touching public goods, and before touching your eyes, nose and mouth; Cover your nose and mouth with paper towels when sneezing or coughing; Keep indoor ventilation, etc.

The incidence of the disease is high, the incubation period is 2 ~ 7 days, and the course of the disease is about 1 week. At the beginning of the disease, sick pigs suddenly have symptoms such as fever, listlessness, loss of appetite or abandonment, often lying together, unwilling to move, having difficulty breathing, coughing violently, and mucus flowing out of eyes and nose. If the treatment is not timely in the onset period, bronchitis, pneumonia, pleurisy, etc. will easily occur, which will increase the mortality rate of pigs.

[Edit this paragraph] The mainstream antiviral drugs are effective for strains.

On April 23, 2009, an official of the US Centers for Disease Control and Prevention pointed out that the prevalent swine flu virus was influenza A virus, which carried H 1N 1 subtype swine flu virus, including DNA gene fragments of three influenza viruses, namely avian influenza, swine flu and human influenza, and had the characteristics of Asian swine flu and African swine flu virus. Medical experiment showed that the current mainstream antiviral drugs are effective for this strain.

[Edit this paragraph] Both humans and animals have diseases.

Because of the following reasons: human influenza cases are related to animal influenza virus, and the virus confirmed in this laboratory is swine influenza virus A/H 1N 1 subtype, which is a new swine influenza virus that has never appeared in humans and pigs before; The human swine flu epidemic broke out in several communities; Most of the infected people are young adults, not the susceptible population of seasonal influenza-the elderly and children, which is very similar to human avian influenza. WHO is very concerned about the human swine flu epidemic in Mexico and the United States.

Ebola virus, SARS, human avian influenza, streptococcus suis infection, swine flu ... The diseases that have frequently caused trouble in recent years are almost all from animals. In recent years, 70% to 80% of the new infectious diseases in the world belong to zoonosis, and the incidence momentum has increased in recent years.

Human infection with swine flu is a respiratory infection caused by swine flu virus. People infected with swine flu virus will have flu-like symptoms. Tamiflu (oseltamivir) is effective in the early stage of virus infection, but it is resistant to amantadine and rimantadine. Preventive measures are mainly to avoid contact with influenza-like patients and maintain personal hygiene; If you are suspected to be infected with swine flu after entering the country, you should wear a mask at home or when seeking medical treatment, and explain your travel history to your doctor.

To prevent human and animal diseases, we should start from the following aspects:

First, vaccinate susceptible people and susceptible animals in time. Rabies high-risk groups regularly use rabies vaccine, and dogs are vaccinated. People bitten by rabies should go to the epidemic prevention department for passive immunization as soon as possible, except for wound treatment as required.

In recent years, human and animal diseases, SARS, foot-and-mouth disease,

The second is disinfection, insecticidal and rodent control. Rodent control is of great significance to prevent the epidemic of infectious diseases. Using various tools to kill rats, such as closing, clamping, buckling, sleeve, etc., has problems such as polluting the environment and destroying the biological balance, and is not recommended.

Third, human beings should have a "sense of intimacy" with their pets. Usually contact with animals should be measured. Many animals hide various viruses and harmful bacteria, which can be transmitted to humans through close contact with human body, such as kissing, touching and sleeping. Many animals will not get sick from the virus, but once the virus spreads to humans, they may get sick. This way frequently attacks humans. At least 200 species are known at present.

The fourth is to strengthen the management of sick animals and suspected sick animals. Houses should be strictly isolated and disinfected (utensils, feed, feces, etc.). ) prevent people from touching animals and animals.

Mad cow disease and monkey smallpox. These people and animals suffer from diseases in various ways.

Fifth, don't overeat game and dead animals. Many wild animals captured from deep mountains and forests are likely to hide unknown viruses in their bodies. Once you eat games containing viruses by mistake, it is likely to lead to the prevalence of new infectious diseases. Dead animals are the bane of human and animal diseases and must not be eaten.

[Edit this paragraph] Swine flu

Swine flu is an acute and highly contagious infectious disease in pigs, which is characterized by sudden onset and rapid spread of the whole group. The main symptom is upper respiratory tract infection, which usually occurs in winter and spring and when the climate changes suddenly. The disease is often secondary to Haemophilus suis.

Clinical symptoms and pathological changes

The body temperature of sick pigs is as high as 40℃ ~ 465℃ and 438 0.5℃, with depressed spirit, loss of appetite or not eating, muscle pain, unwillingness to stand, viscous liquid from eyes and nose, conjunctival congestion, some sick pigs have difficulty breathing, panting, coughing, abdominal breathing, sitting posture of dogs, and some sick pigs have asthma sounds at night, especially some sick pigs have joint pain.

Autopsy showed that the larynx, trachea and bronchus were filled with mucus containing bubbles, the mucosa was congested and swollen, sometimes mixed with blood, the interstitial lung was widened, lymph nodes were swollen, congestion and splenomegaly, gastrointestinal mucosa was catarrhal inflammation, and liquid containing cellulose accumulated in the chest cavity and pericardium cavity.

diagnose

According to the incidence, clinical symptoms and pathological changes, it can be preliminarily diagnosed that the pig herd is secondary to influenza.

Preventive and control measures

One,

1. Strengthen feeding management, improve the nutritional needs of pigs, clean the environment regularly and isolate sick pigs in time.

2. Qingkailing injection+Lincomycin hydrochloride injection+amoxicillin, 0.2 ml ~0.5 ml per kilogram of body weight, mixed intramuscular injection, once a day, for 3 days.

3. Mix antiviral powder I (400 kg/bag) and doxycycline 300ppm into the feed and mix evenly. Continuous stirring 10 day; At the same time, electrolytic multidimensional is added to drinking water. After taking the above treatment measures, the condition was quickly controlled and the whole group recovered after 3 days.

4. Jingfangbaidu Powder has special effects on preventing swine flu.

Second,

1. Isolate in time. Barns and feeding utensils should be disinfected with 2% caustic soda solution, and scraps and water should be buried deeply or treated without pollution. Add 0.05% moroxydine hydrochloride (valin) to the pig's diet and feed it 1 week.

2. Give pigs 250g mung bean, Bupleurum Radix Isatidis 100g and decoction 10kg, which has a good preventive effect.

treat cordially

Symptomatic treatment should be given to sick pigs to prevent secondary infection. Optional: 15% moroxydine hydrochloride injection, 25 mg per kilogram of pig body weight, intramuscular injection, twice a day, continuous injection for 2 days. 30% metamizole sodium injection, 30 mg per kg of pig's body weight, intramuscular injection, twice a day for 2 consecutive days. If the whole group is infected, Chinese medicine can be given. Chinese medicine formula: Schizonepeta, Lonicera japonica, Folium Isatidis, Bupleuri Radix, Radix Puerariae, Scutellariae Radix, Akebia Akebia, Radix Isatidis, Glycyrrhrizae Radix and Zingiberis Rhizoma each 25-50g (each head weighs about 50kg). Sun-drying the medicine, pulverizing into fine powder, and mixing with feed. If you have no appetite, you can take it by decocting, usually 1 dose.

Swine flu is caused by swine flu virus, which is often sudden, with body temperature of 40-465438 0℃, dyspnea, cough and serous eyes and nose, and can be recovered within one week. Treatment: ① intramuscular injection of 4-6 ml of baierding injection; Or metamizole sodium injection 4- 1Oml intramuscular injection, daily 1 time. ② Yeast tablets 20-60, artificial salt 10-30g, and * * * were ground into powder and mixed with feed, once a day, for 3 days.

summary

In this case, the disease of pigs is due to climate change, poor enclosure conditions and low management level of livestock owners, which leads to swine flu. At the same time, due to the long illness time, the sick pigs are infected with Haemophilus suis. The disease should be strengthened in feeding management, disinfected regularly, and early detection and treatment should be achieved, and drugs should be used according to the course of treatment.

International epidemic report:

The official in charge of the Ministry of Health said on the 25th that recently, the Ministry of Health received a notification from the World Health Organization that there were A/H 1N 1 cases of human swine flu in the United States (blog area) and Mexico. In this regard, the Ministry of Health, the Ministry of Agriculture, the General Administration of Quality Supervision, Inspection and Quarantine and other relevant departments attach great importance to and pay close attention to it.

It is understood that the Ministry of Health and other departments are organizing experts to analyze the virus sequence, judge the impact of the epidemic, study prevention and control measures such as entry-exit inspection and quarantine of imported cases, and improve relevant prevention and control plans; And pay close attention to the progress of the epidemic, strengthen contact with the World Health Organization, the United States and the Mexican government, track further detailed information on the epidemic and its prevention and control, and do a good job in response according to the development trend of the epidemic.

According to the World Health Organization, there have been cases of human infection with swine influenza A1N1in the United States and Mexico. Influenza-like cases in Mexico have been on the rise since March 18, 2009. As of April 24th, there have been three outbreaks in Mexico, with 882 reported cases and 62 deaths, with a fatality rate of 7%. Most cases are young people. At the same time, the United States reported 7 confirmed cases and 9 suspected cases, with mild symptoms and no deaths. According to the preliminary results of laboratory tests, the swine flu virus A/H 1N 1 which caused this epidemic has not been detected in pigs or humans before.

How do children prevent swine flu?

Marco Youinpei, acting director of the US Centers for Disease Control and Prevention, told the media that influenza can be spread by coughing or sneezing, so you should cover your nose and mouth when coughing or sneezing. More and more evidence shows that influenza virus can survive on the surface of some daily necessities for a period of time, and may spread to mouth, nose and eyes through hands. Therefore, Qin Ying often washes his hands and disinfects daily necessities with alcohol.

You Yinpei said that "gathering" in crowded places is also an effective way to reduce the probability of infection. He also suggested that patients with sudden symptoms such as fever, cough or muscle pain should seek medical attention immediately, and those who have been infected with influenza virus should not take public transport or travel. In addition, antiviral drugs should be kept at home.

The World Health Organization warned on the 25th that the swine flu epidemics in Mexico and the United States have constituted "public health emergencies with international influence", and countries should strengthen the monitoring of the abnormal epidemics of influenza-like diseases and severe pneumonia.