What is the cause of H7N9 virus (uninfected)? On April 3rd, 20 13, the National Health and Family Planning Commission of China issued the Hospital Infection Diagnosis and Treatment Scheme, Prevention and Control Scheme and Technical Guide for Prevention and Control. According to the Diagnosis and Treatment Plan for Human Infected with H7N9 Avian Influenza (20 13, 1 Edition) [23], the source of infection of human infected with H7N9 Avian Influenza is still unclear. According to the past experience and epidemiological investigation of this case, it is speculated that birds may carry H7N9 avian influenza virus and its secretions or excretions. The route of transmission is through the respiratory tract, but also through close contact with infected poultry secretions or excreta, or direct contact with the virus. There is no conclusive evidence of human-to-human transmission. At present, the high-risk groups are mainly engaged in poultry breeding, sales, slaughtering and processing, as well as those who have been exposed to poultry before 1 week. The diagnosis and treatment plan points out that the incubation period of human infection with H7N9 avian influenza generally does not exceed 7 days. Patients generally show flu-like symptoms, such as fever, cough and scanty phlegm, which may be accompanied by headache, muscle aches and general malaise. Severe patients develop rapidly, showing severe pneumonia, body temperature above 39℃, dyspnea and hemoptysis. Acute respiratory distress syndrome, mediastinal emphysema, septicemia, shock, disturbance of consciousness and acute kidney injury can develop rapidly.

Prevention and control plan:

According to the diagnosis and treatment plan, the clinically diagnosed patients should be treated in isolation. Symptomatic treatment can include oxygen inhalation, antipyretic drugs, antitussive and expectorant drugs, and anti-influenza drugs should be used as soon as possible. At the same time, the "Prevention and Control Plan for Human Infection with H7N9 Avian Influenza (First Edition)" clarifies that cases with four conditions at the same time are monitored cases: fever (axillary temperature ≥ 38 C); It has the imaging characteristics of pneumonia; At the beginning of the disease, the total number of white blood cells decreased or was normal, or the differential count of lymphocytes decreased; It can not be diagnosed as pneumonia caused by common pathogens from the clinical or laboratory point of view. The prevention and control plan requires that all kinds of medical institutions at all levels should directly report cases that meet the definition of monitoring within 24 hours. All kinds of medical institutions at all levels should report the suspected cases and confirmed cases of human infection with H7N9 avian influenza directly within 2 hours. The National Health and Family Planning Commission also issued a notice on the same day, requiring all localities to strengthen the prevention and control of human infection with H7N9 avian influenza and implement the reporting system for human infection with H7N9 avian influenza. Since April 4, the daily reporting system of epidemic information has been launched in provinces where confirmed cases have been reported. The notice requires that once a case is found, it should be reported in time, and the work of tracking management of close contacts, traceability of epidemic situation, epidemiological investigation and laboratory testing should be strengthened.

On April 5, 20 13, Beijing administration of traditional Chinese medicine announced the Chinese medicine prevention plan for human infection with H7N9 avian influenza, suggesting that high-risk groups can use "Chinese medicine instead of tea" for prevention when necessary.

According to the Beijing Municipal Bureau of Traditional Chinese Medicine, the high-risk groups of TCM prevention include: people engaged in poultry slaughtering, trafficking and cooking, and other people who are in close contact with poultry and poultry products; Children, the elderly, chronic basic diseases and other immunocompromised people.

Prescription 1 of "Traditional Chinese Medicine for Tea": It is suitable for children aged 3 to 12, and consists of Rhizoma Phragmitis 10g and Fructus Forsythiae 3g, one dose per day, brewed in boiling water. Prescription 2: It is suitable for adults, and consists of 5g cogongrass rhizome, 3g agastaches, 3g chrysanthemums and 5g glehnia littoralis, with a dosage of/kloc-0 per day, soaked in boiling water. Old and weak people, chronic diseases and qi deficiency can add Yupingfeng powder.

Avian influenza is caused by virus H7N9. The following understandings or practices about H7N9 influenza are correct: (a) H7N9 influenza virus is the source of infection, and pathogens refer to microorganisms and parasites that can cause diseases. Microorganisms account for the vast majority, including viruses, chlamydia, rickettsia, mycoplasma, bacteria, spirochetes and fungi; Parasites mainly include protozoa and mites. Pathogens belong to parasitic organisms, and their natural hosts are animals, plants and people. H7N9 influenza virus is the pathogen, and A is wrong.

B. Infectious diseases refer to diseases caused by pathogens, which can spread between people and between people and animals, and have the characteristics of infectivity and epidemic. H7N9 influenza is caused by pathogens and belongs to infectious diseases, B error;

C, antibody refers to a special protein for pathogens produced by lymphocytes after pathogens invade human body, which can specifically bind with corresponding antigens. Mainly distributed in serum, tissue fluid and exocrine fluid. For example, when the H 7 N 9 virus invades the human body, * * lymphocytes will produce a special protein to fight against the H7N9 virus. This protein is called antibody, and C is correct;

D, strengthening exercise and developing good health habits are important measures to prevent infectious diseases, belonging to the protection of susceptible people, D wrong.

So choose: C.

What is the cause of muscovy duck parvovirus? Muscovy duck parvovirus disease is caused by muscovy duck parvovirus. Muscovy duck is an infectious disease characterized by wheezing, diarrhea, pancreatic necrosis and bleeding within three weeks (commonly known as muscovy duck three-week disease), and its morbidity and mortality can reach 40% ~ 50%. It is one of the most serious infectious diseases in muscovy duck breeding industry.

Emergency prevention or treatment of sick muscovy ducks with duck venom, intramuscular injection of duck venom; 1ml/kg, and the preventive dose was halved.

What is the cause of viral hepatitis B caused by B virus? Infection is mainly caused by transfusion of contaminated blood and blood products, and may also be caused by unclean contact.

(20 13? Nan 'an Quality Inspection) Human infection with H7N9 avian influenza is an acute respiratory infectious disease caused by H7N9 subtype avian influenza virus. The H7N9 subtype avian influenza disease (1) is an infectious and epidemic disease. H7N9 avian influenza virus has a special structure, with no cell structure, only the shell and internal genetic material of protein. It can't live independently, but can only be parasitic in living biological cells, so H7N9 belongs to the virus.

(2) The epidemic of infectious diseases includes three basic links: the source of infection, the route of transmission and the susceptible population. When infectious diseases are prevalent, cutting off any one of the three basic links can stop the epidemic of infectious diseases. All our measures to prevent infectious diseases are aimed at one of the three basic links. Therefore, the general measures to prevent infectious diseases can be divided into: controlling the source of infection, cutting off the route of transmission and protection.

Among the relevant preventive measures mentioned in the above information, all schools in our city implement the zero-report system for morning inspection of H7N9 avian influenza. Once students with symptoms of acute respiratory infection such as fever and cough are found, especially those with high fever and dyspnea, they are required to go to the hospital in time and return to school after recovery. From the perspective of preventive measures, this belongs to controlling the source of infection; When symptoms of respiratory tract infection such as sneezing and coughing appear, cover your mouth and nose with paper towels and handkerchiefs to prevent others from being infected. Students should maintain personal hygiene habits such as washing hands frequently, and avoid contact with and eating sick (dead) birds and livestock, which belongs to the protection of susceptible people from the perspective of preventive measures.

(3) From the perspective of infectious diseases, H7N9 avian influenza virus belongs to the pathogen. Antibodies refer to immunoglobulins produced by lymphocytes that can specifically bind to corresponding antigens after pathogens invade human bodies. Mainly distributed in serum. It is also distributed in tissue fluid and exocrine fluid. The pathogen that causes lymphocytes to produce antibodies is antigen. Antigens include microorganisms, foreign bodies, foreign bodies and other pathogens that enter the human body. Therefore, from the point of view of immunity, H7N9 avian influenza virus belongs to antigen. Therefore, the injection of H7N9 influenza vaccine makes the human body produce antibodies against this influenza virus, which can only be effective against this influenza virus, but not against other viruses, so this kind of immunity belongs to specific immunity.

So the answer is: (1) popular? Virus?

(2) control the source of infection? Cut off the transmission route? Protect susceptible people

(3) antibodies? No (invalid)? This immunity is specific.

Can H7N9 virus infect people? I haven't found it yet!

Can H7N9 virus be transmitted to pigs? No, I don't think so. It is only contagious among birds.

Can sparrows be infected with human H7N9 virus? Don't be afraid, the virus is only found in pigeons now! Sparrows haven't!

How does h7n9 spread, and how does it spread between people? Will domestic chickens have h7n9 virus? Where is the host of h7n9 virus? At present, h7n9 does not spread from person to person, and the main host is poultry.

What is the cause of condyloma acuminatum virus? Hello, condyloma acuminatum is a sexually transmitted disease caused by human papillomavirus (hereinafter referred to as human papillomavirus), which belongs to sexually transmitted diseases. Of course, there are other modes of transmission, such as indirect transmission and mother-to-child transmission. Indirect transmission means that you have a small wound on your body and then you are infected with this virus in public places or in your daily life. Mother-to-child transmission refers to the infection of the fetus through the birth canal infected by virus during delivery. The common treatments for this disease are laser, cryotherapy, topical medicine and a more thorough Chinese medicine, Pateling. I hope my answer is helpful to you.