The swine flu is mucus virus found in pigs and a cause of local influenza is a respiratory disease, caused by influenza A virus (A-type influenza viruses). The swine flu is usually between the outbreak of swine. Autumn and winter is a high incidence of the year to transmit. Previous human cases of swine flu, but no human to human transmission in case. Swine flu in Mexico in April 2009 caused a number of more than 150 death events, and there are signs of spreading across the globe. April 30, 2009 World Health Organization announced that from now on, the WHO, referring to the influenza outbreak of A/H1N1 influenza, "the name on the site. FAO and the World Organisation for Animal Health has also made the same decision.
Swine flu - OverviewSwine influenza is referred to as swine flu. The swine flu is a respiratory infectious disease caused by the swine flu virus. The clinical characteristics of swine flu as sudden onset, rapid spread of the whole group. The swine flu virus is mainly present in the respiratory secretions of pigs, the discharge of polluting the environment, such as feeding drinking. Pigs, droplets, air, mice, mosquitoes are disease transmission. At the onset of the swine influenza, pigs appetite decreased or did not eat, conjunctival flushing out of sticky secretions from the nose, body temperature increased rapidly to 40.5 ℃ to 42.5 ℃, listlessness, coughing, breathing and heart rate increase in the number of the last severe asthma, was abdominal or dog sitting breathing. Stool dry and hard to constipation, yellow urine loss, limb weakness, unwilling to activities.The symptoms of swine flu are similar to the common cold, diseased body temperature up to above 40 ℃, sometimes as high as 42 ℃. Eyes, noses and often out of the sticky secretions, nose juice, sometimes with redness of the skin, often shortness of breath, showed the abdominal breathing, mixed with intermittent cough, Eat or not eat, dry hard stool, but also the common muscle and joint pain, joy lying more than pigs crowded together.
The swine flu is characterized by the oncoming sudden large occurrence of severe symptoms, but the short duration, the majority of pigs in recovery within a week, a few pigs to the occurrence of secondary infection, hemorrhagic lobar pneumonia or enteritis and death. Anatomical dead pigs found lesions in the respiratory organs, visible on the respiratory tract (nose, larynx, trachea, bronchi) mucosal bleeding, a large number of foamy liquid, or mixed with blood. Fresh beef-like lesions in the lung leaves, pointed leaves and middle leaves, was purple, mostly irregular symmetry. Lung disease area atelectasis, collapse, and the surrounding lung tissue emphysema (the appearance of a pale color). Hilar and mediastinal lymph edema, hyperemia.Swine flu - renamedA/H1N1 flu World Health Organization announced on the website on April 30, 2009 said: From now on, the WHO, referring to the influenza outbreak of A/H1N1 influenza, "the name. FAO and the World Organisation for Animal Health has also made the same decision.
World Health Organization, the FAO and the World Organisation for Animal Health (OIE) have repeatedly pointed out that the A/H1N1 virus has genes from swine, poultry and human fragments found in North America, there is no evidence that this virus in pigs spread among pigs to humans, there is no evidence that eating processed pork or other pig products can cause infections in humans. The temperature normally used in cooking meat (eg 70 ° C core temperature) will readily inactivate any viruses that may be present in raw meat products.FAO April 30 June, through the media was informed that the Egyptian Government's intention to slaughter all pigs in the 29th FAO on the 30th, made direct contact with the Egyptian Government. The Egyptian government said the country's plan is to check in pigs, once a farm of pigs carrying the A/H1N1 virus, the animals in the farm implementation of slaughter, instead of all the slaughter of all pigs.OIE stressed that the slaughter of pigs is not the appropriate means of safeguarding public and animal health, governments should focus on the implementation of disease surveillance and strengthening biosecurity measures of pig farms, slaughterhouses and other places.
Swine flu - basic overviewThe epidemic spread of the map (April 28, 2009) at the end of March 2009, the swine flu (influenza A virus H1N1) in Mexico and the United States, California, Texas, began erupting more than 4,000 people were infected and led to 152 people dead (as of 2009), later more spreading trend. The failure to detect all cases, the World Health Organization all the cases known as the suspected flu-like illness. These cases have serious suspected flu symptoms and even pneumonia, lead to death, like Mexico. The genetic part of this new variant of influenza virus from the human influenza virus, the rest from the swine flu. In April, the World Health Organization and U.S. Centers for Disease and Control Centre for the new variant, the risk of suspected human to human transmission in Mexico fatal expressed great concern.The swine flu viruses do not normally infect humans. Occasionally occur, usually those that direct contact with infected pigs, such as farm workers. U.S. scientists said the swine flu virus may be preventable, controllable. U.S. cure for Tamiflu (Hong Kong Chinese to Tamiflu, Taiwan translated as Tamiflu). This is a special medicine for the flu and been on the market for 10 years, but due to side effects, cause insanity, only there are 54 people in Japan died after taking Tamiflu, the sales have been bad. The swine flu appeared, Duffy immediately sell very hot, and the side effects seem to be forgotten. Tamiflu currently is considered the most effective drugs against highly pathogenic avian influenza. The overseas media said there may be another "conspiracy".
Swine flu - the symptoms of sick
Strengthen the prevention of symptoms of illness swine influenza A H1N1 subtype of the major symptoms are: fever (above 37.8 degrees Celsius), muscle pain, cough, sore throat, stuffy nose, vomiting and even diarrhea-like symptoms.
The main symptoms: flu-like symptoms of fever, cough, fatigue, loss of appetite and so on.
The mode of transmission: spread by people - people in the form, sneezing, coughing and physical contact can transmit the virus. Trace the virus can be retained in the desktop, telephone, or other flat surface, then spread through the fingers and the eyes, nose, mouth contact.
Prevention: adequate sleep, and diligent exercise, wash your hands, keep the ventilation of indoor, and to develop good personal hygiene habits. Cover your cough or sneeze, wash hands frequently, to the end of alcohol hand milk or foam disinfectant to kill bacteria or viruses is also very good. Swine flu and other virus resistance to the outside world is poor, as long as heated to 71 ° C, will be able to kill the swine flu virus.
Incubation period: the new swine flu virus may be latent in the human body seven days later showed the disease.
Mortality: the swine flu mortality rate was 6.77%, higher than the average flu, its high mortality rate for two main reasons: First, the virus ferocious; two people initially do not attach importance to the new disease, that is the common cold. a lot of people yourself to some drugs, missed the best treatment of early-onset 72 hours.
Susceptible populations: mostly young adults, age is concentrated in the 25-year-old to 45 years.
Prevention vaccine: invalid mankind has developed influenza vaccine for the swine flu swine flu can prevent, controllable, can cure.
Swine flu - mode of transmission
Infection: swine flu viruses do not normally infect humans. Occasionally occur, usually those that direct contact with infected pigs, such as farm workers. "We've seen swine influenza in the past few years directly infect humans, in most cases, this is from direct pig contact. But this seems different." Flu expert Dr. Arnold Monto of the University of Michigan.
Communication: in the case of the virus from person to person transmission may have been formed in the same way seasonal flu, through coughing and sneezing of infected people.
Swine flu - the treatment and prevention of48 hours of oral administration of Tamiflu can be effectively controlledDrugs rule there are four different drugs approved in the U.S. treatment of influenza, but the new virus showed resistance. The center proposes the use of flu drugs Tamiflu and Relenza.PreventionSwine flu can be spread through coughing or sneezing, therefore coughing or sneezing should cover your mouth, nose; more and more evidence that influenza virus can survive for some time on the surface of some daily necessities, there may be spread by hand to mouth nose, eyes, and therefore should wash their hands, but also often use alcohol as daily necessities disinfection.The American research and drug treatmentGene sequencing of these cases, swine influenza virus from four different flu viruses unusually composed, respectively, is the North American swine influenza viruses, North American bird flu virus, human influenza A subtype H1N1 virus and is common in Asia, Europe The swine influenza virus.Variants of influenza virus to amantadine (amantadine) and rimantadine (rimantadine) showing resistance to oseltamivir (Tamiflu) and zanamivir (Relenza) to combat this new variant of influenza virus . Temporarily display the genetic characteristics of the hemagglutinin (HA) gene with the 1999 U.S. swine flu, but the neuraminidase (NA) and the hybrid protein (M) genes are like a new species from Europe, a variety of swine flu combination. Seasonal H1N1 influenza vaccine is unlikely to provide protection for human.Swine flu - swine, symptoms and treatmentThe swine flu occurred in the winter and spring, spring more than in the early spring, is endemic.
The high incidence of the disease, the incubation period of 2 - 7 days, the course of a week or so. In the incidence of mismanagement, prone bronchitis, pneumonia, pleurisy, increased mortality in pigs, it should pay attention to the disease prevention and control.First, the symptomsPigs is sudden onset of fever, lethargy, loss of appetite or not eat, often lying together, do not want to activities, difficulty breathing, intense coughing, eyes, noses and mucus.Second, the pathogenSwine flu virus, a single strand of negative-strand RNA virus, H1N1, H1N2, H3N2, H4N6 and other subtypes.Third, the clinical diagnostic criteriaLate autumn, early spring and winter (1) multiple; sudden outbreak, and spread rapidly, soon involving most of the pigs or the pigs, initially identified as influenza.(2) pigs tearing, increased nasal discharge, severe cough, abdominal breathing; temperature 40 ° C -42 ° C, the clinical symptoms typical of great reference value; diffuse bronchial pneumonia, the lungs become extremely heavy and full of edema fluid, necrosis, and normal lung tissue boundaries; secondary infection mortality rate is low; pregnancy sow miscarriage.(3) laboratory diagnosis: AGP; ELISA,; by RT-PCR; virus isolation, identification, etc..Fourth, the treatmentAntipyretic and analgesic, such as metamizole sodium, compound aminopyrine, Antongding; control bacterial infection, intramuscular injection of ofloxacin, ciprofloxacin, anthracene, enoxacin, two fluorine sand star, amikacin, The Apra neomycin, gentamicin, cephalosporins, penicillin, streptomycin, and increased efficiency sulfonamides and other.Cook five pork can prevent swine flu, prevention prevention: to adopt comprehensive measures to strengthen management, strict disinfection, disinfection of the environment can choose the 0.3% -0.5% peracetic acid; strict control rats, cats, dogs, birds and other poultry into pig field; farms not feeding ducks, geese, etc.; fattening house full all out system can reduce the disease occurred, but it is difficult to eradicate; prohibited from entering the pig breeder suffering from influenza; made of the local epidemic strains of serotype unit price or more the price of seedlings immunization., Bedding and frequently changes the hay, and be disinfected regularly with 5% caustic soda on the pig.2, pay close attention to weather changes, once cooling, heating insulation in a timely manner.3, to prevent exposure of susceptible pigs infected animals.
A type of influenza, we can not contact with pigs.4, with the swine flu adjuvant inactivated vaccine on pigs twice a continuous vaccination, the immune period of up to eight monthsAdditional1, no special drugs for this disease, only symptomatic treatment drugs to alleviate the condition, to avoid the occurrence of secondary infection. Trial compound morpholine tablets or compound adamantane film and Isatidis granules treatment, the dosage can be determined according to pig body weight and drug content.2, taking antibiotics or sulfa drugs, to prevent bacterial infection.Seriously ill pigs available penicillin and streptomycin, the plus virus Spirit, intramuscular injection, 2 times a day for 5 days.Antibiotics and antibiotics in the feed rate of 0.2%, but also make the condition was under control.
