What kind of swine flu was transmitted recently?

Lotus Fairy tells you: The relevant person in charge of the Chinese Ministry of Health said on the 25th that recently, the Ministry of Health received a notification from the World Health Organization that there was an outbreak of human infection with A H1N1 swine flu in the United States 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.

It is understood that the Ministry of Health and other departments are organizing experts to analyze the virus sequence, study and judge the impact of the epidemic, study the prevention and control measures such as entry-exit inspection and quarantine in response to imported cases, and improve relevant prevention and control plans; We will also pay close attention to the progress of the epidemic, strengthen contact with the World Health Organization, the United States and Mexico**, track further details of the epidemic and epidemic prevention and control, and do a good job in responding to the epidemic according to the development trend of the epidemic. The General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China issued an emergency announcement on the 25th, requiring people from areas where human infection with swine flu is prevalent to take the initiative to make an oral declaration to the entry-exit inspection and quarantine agency if they have flu-like symptoms. The announcement requires that people who travel to areas where human infection with swine flu is endemic can learn about the epidemic situation in the area from the entry-exit inspection and quarantine agency and its international travel health care center; Those who develop flu-related symptoms during or after travel should seek medical attention immediately and report to the inspection and quarantine authorities upon entry.

Studies have found that there are 135 types of influenza viruses, some of which are related to animals, such as pig, poultry, horse, seal influenza viruses have been found, these animal influenza viruses usually circulate in animal populations, once they enter the human population is worrying, such as avian influenza. As early as 30 years ago, there were reports of equine flu in China, but at that time it was only limited to horses. As a respiratory disease, influenza is mainly transmitted through the respiratory tract, but it is difficult to determine the source of infection, and some cases have never been in contact with pigs.

The high incidence season of influenza is in winter and spring, and now summer is approaching, and sunlight can kill influenza viruses, so summer flu is rare. It is recommended that the public follow the usual practice of preventing infectious diseases, ventilate the room frequently, dry clothes and quilts, eat cooked food, and rarely go to crowded areas. Although swine flu is a respiratory disease, it is only the main channel and can also be transmitted by eating pork, but as long as the pork is cooked, there is no danger.

Experts believe that the new swine flu is controllable, and prevention should do the following: First, wash your hands frequently, including your nose and mouth. If you are sick, stay home and limit contact with other people.

Second, try to go to the gathering place as little as possible. Third, avoid physical contact, including shaking hands, kissing, eating together, etc. Fourth, people who have signs or symptoms of influenza should seek medical attention promptly.

The Lotus Fairy wishes you health and happiness! Thank you!

China does not have it yet. You can eat pork with confidence.

Respiratory transmission.

Swine flu is an acute, infectious respiratory disease in pigs. It is characterized by suddenness, cough, dyspnea, fever, and rapid regression.

Key points of diagnosis: Epidemiological characteristics: Pigs of all ages, sexes, and breeds are susceptible to the virus. The epidemic of the disease is significantly seasonal, with the weather prone to late autumn, early spring, and cold winters. The disease spreads rapidly and is often endemic or pandemic.

It has a high incidence and a low mortality rate (4% to 10%). Sick pigs and pigs with poison are the source of infection of swine flu, and pigs are infected for 6 to 8 weeks after the disease is cured.

Clinical featuresThe incubation period is short, ranging from a few hours to a few days, with an average of 4 days at the time of natural onset. In the early stage of the disease, the body temperature of the sick pig suddenly rises, anorexia or appetite is lost, extremely weak and even collapse, and often lie on the ground. Shortness of breath, abdominal breathing, paroxysmal cough.

Mucus flows from the eyes and nose, and nasal discharge is sometimes bloody. Sick pigs are crammed together, difficult to move, and the muscles are stiff and painful to touch, and diaphragm spasms and breathing are frustrated, which is generally called hiccups. If there is a secondary infection, the disease worsens, and fibrinous hemorrhagic pneumonia or enteritis develops.

Sows are infected during pregnancy, and piglets are severely ill 2-5 days post-farrowing, and some die during lactation and around weaning.

Pathological changes: The pathological changes of pig epidemic are mainly in the respiratory organs. The mucous membranes of the nose, pharynx, larynx, trachea, and bronchi are congested and swollen, covered with viscous fluid, and filled with foamy exudate in the small bronchi and bronchioles. The thoracic cavity and pericardial cavity accumulate large amounts of serous fluid mixed with cellulose.

Lesions of the lungs often occur in the dorsal and basal base of the apical lobe, heart lobe, middle lobe, and diaphragm, with obvious boundaries with the surrounding tissues, the color is from red to purple, collapsed, solid, tough like leather, the spleen is enlarged, and the cervical lymph nodes, mediastinal lymph nodes, and bronchial lymph nodes are swollen and juicy.

Differentiation of Diseases Because the epidemic of pigs does not always appear in a typical form and is very similar to other respiratory diseases, the clinical diagnosis can only be presumptive. In autumn or early winter, respiratory diseases in the herd can be suspected as a pig epidemic.

The outbreak of upper respiratory tract syndrome, including conjunctivitis, sneezing and coughing, and low mortality, can distinguish pig epidemic from other upper respiratory tract diseases in pigs, and in the differential diagnosis, attention should be paid to the difference between pig asthma and this disease, which is most likely to be confused.

Prevention and control measuresThere is no effective vaccine and special effect for this disease**, it is important to take good care and keep the pig house clean, dry, warm and free of thieves. Provide sufficient clean drinking water, ** for the first few days, the feed supply should be limited. Sick pigs should not be harassed or moved during the onset of illness to reduce death from stress.

Mode of transmission. There have been confirmed cases of human-to-human transmission of influenza A (H1N1) viruses and can be transmitted to pigs. It is transmitted through a similar route to seasonal influenza, usually through coughing and sneezing by an infected person.

Precautionary measures. Influenza A (H1N1) viruses are mainly transmitted through air and contact, so coughs or sneezes should be covered with mouth and nose; Wash your hands frequently and disinfect everyday items with alcohol frequently. Avoid contact with pigs or places where there are pigs.

Avoid going to crowded places.

Normally, humans are rarely infected with the swine flu virus. However, in recent years, some cases of human infection with swine influenza have also been detected, and most of the patients are people who have had direct contact with sick pigs, such as breeders. It has been reported that between December 2005 and January this year, only 12 cases of swine flu have been detected in the United States, 11 of whom had direct contact with pigs.

Influenza viruses are mainly spread through the air and contact, so cover your mouth and nose when coughing or sneezing; Because the flu virus can often survive on some surfaces of everyday items for a period of time, wash your hands frequently and disinfect everyday items with alcohol frequently. In addition, "gathering children" in crowded places is also an effective way to reduce the probability of infection. Finally, if you are found to be infected, you should avoid going out as much as possible to prevent spreading the virus to others.