Guangzhou Daily (All media reporter He Xuehua correspondent Yue Kangxin) The reporter learned from the official website of the Chinese Center for Disease Control and Prevention yesterday that China has found a variant of the H7N9 virus from human cases. Guangzhou Daily (All media reporter He Xuehua correspondent Yue Kangxin) The reporter learned from the official website of the Chinese Center for Disease Control and Prevention yesterday that China has found a variant of the H7N9 virus from human cases. The virus has been mutated to avian highly pathogenic virus; mutations that have increased human infectivity, virulence, and interpersonal transmission have not yet occurred. This finding shows that the H7N9 epidemic prevention and control measures adopted earlier than in Guangdong were more necessary and effective than ever.
Guangdong's H7N9 Epidemic Prevention and Control Measures are Necessary and Effective
According to experts, exposure to infected poultry or exposure to live poultry markets is an important risk factor for human infection. Adhering to the “prevention-oriented†approach, Guangdong Province has taken a series of more stringent H7N9 epidemic prevention and control measures in the early stages, and more stringently strengthened the management of live poultry business markets and live-bird transactions, including strengthening the 1110 system across the province. A multi-sectoral comprehensive law enforcement was implemented in response to market management; the control of live poultry transportation was strengthened; the province was suspended from all high-risk provinces, and all live poultry were suspended; and the rest hours were extended. The monitoring results show that after implementing a series of prevention and control measures, the number of cases after the Spring Festival has been significantly reduced compared with before the holiday. At present, the rising trend of H7N9 epidemic has been effectively curbed.
It is reported that in January 2017, the CDC of Guangdong Province carried out gene sequencing analysis on the viruses isolated from two human cases of H7N9 infection and found that gene insertion mutations occurred at the positions of the hemagglutinin linker peptides of the two viruses. . After the test results were reported to the China Center for Disease Control and Prevention, they were reviewed and confirmed by the National Influenza Center of the China Center for Disease Control and Prevention.
Guangdong has a comprehensive multi-sectoral comprehensive monitoring system
Chief physician He Jianfeng, chief expert of infectious disease prevention and control at the Guangdong Provincial Center for Disease Control and Prevention, told reporters that Guangdong's rapid detection of virus mutations is closely related to Guangdong's sophisticated influenza surveillance system, and also to many departments in Guangdong Province. Subjects can not be separated from each other by collaborative cooperation. In Guangdong, in addition to the monitoring of human flu by the health authorities in the monitoring of influenza, there is the monitoring of poultry flu by the agricultural animal husbandry and veterinary department. "For example, the detection of a virus mutation this time was a major discovery in close collaboration with the research team of Vice President Liao Ming of South China Agricultural University." He Jianfeng said.
In the routine monitoring of H7N9, the CDC of Guangdong Province found an abnormal situation that was different from previous years: The proportion of H7N9 patients directly exposed to birds was higher than in previous years. "During the epidemiological analysis, disease control experts found that among the cases of winter and spring of last year, the proportion of direct contact with poultry among H7N9 patients was significantly higher than before, and a certain percentage of patients had contact history of sick and dead poultry. There is no such thing in the past. This reminds us to carry out further analysis on the etiology of the virus."
After obtaining the initial findings of the virus mutation, the Guangdong Provincial Center for Disease Control and Prevention reported the samples to the National Center for Disease Control and Prevention, which was reviewed by the National Center for Disease Control and Prevention, and finally confirmed the results of Guangdong's detection.
The current variation will not increase the ability to infect
After reviewing the results submitted by Guangdong, the China CDC organized experts to conduct research and communicate with experts in the agricultural sector. He concluded that the H7N9 virus had an insertion mutation at the position of the hemagglutinin linker peptide, suggesting that the virus was mutated to For avian highly pathogenic viruses; In addition, according to the results of the virus sequence analysis, no mutation has occurred in the mutant virus for human infectivity, virulence and interpersonal transmission.
He Jianfeng explained: The H7N9 virus mutation is highly pathogenic to poultry, which means that the mutated virus will cause the bird to be more susceptible to morbidity and death; however, studies of disease control have shown that the current mutation of the virus does not increase its ability to infect humans. . Disease control experts stressed that the H7N9 outbreak can be controlled.
He Jianfeng reminded that with the spread of poultry viruses that are highly pathogenic to poultry, there may be more bird deaths, which in turn leads to a corresponding increase in the incidence of human exposure to such birds.
He Jianfeng called on members of the public, especially the elderly, pregnant women and people with underlying diseases, to avoid contact with live birds and to avoid contact with diseased or dead poultry. People should seek medical attention if they develop fever, headache, nasal congestion, cough, general malaise and other respiratory symptoms. Also inform the doctor if there is live exposure or live bird market exposure.
Municipal Government held video work conference Wen Guohui stressed
Really increase the sense of urgency responsibility
To prevent and control human infection with bird flu
Guangzhou Daily News (All media reporter He Tao correspondent Sui Fuxin) Yesterday afternoon, the municipal government convened a work conference on the prevention and control of bird flu epidemics. Guangzhou Mayor Wen Guohui attended the meeting and delivered a speech. Standing Deputy Mayor Chen Zhiying presided over the meeting.
Wen Guohui pointed out that the winter and spring season is a season of high incidence of human infection with bird flu, and Guangzhou has launched a joint prevention and control mechanism for the epidemic, but the situation is still grim. The relevant departments at all levels in the city should earnestly enhance their sense of urgency and responsibility, and take the prevention and control of bird flu outbreaks as a matter of course, and fully safeguard the health and safety of the people.
Wen Guohui emphasized that we must earnestly implement various prevention and control measures for people infected with bird flu. The first is to strengthen the joint prevention and control mechanism, improve the departmental joint conference system, implement the responsibilities of all districts, and do emergency work. The second is to implement the rest measures, strengthen the daily supervision and management of the live-bird trade market, implement the system of cleaning, sweeping, rest and live-stock keeping, and investigate and punish violating feeding, sales, slaughter of live birds and live poultry stalls around the market. The third is to strengthen surveillance and monitoring of the poultry epidemic, ensure that the poultry epidemic information is known at the first time, prevent the spread of the epidemic, and resolutely eliminate the epidemic in the bud. The fourth is to improve the ability of case diagnosis and treatment and implement the requirements of “early detection, early reporting, early diagnosis, and early treatmentâ€. The fifth is to intensify publicity and education, make people infected with bird flu epidemic prevention and control measures known to everyone, and help the general public establish a healthy concept of poultry consumption.
The deputy mayor of Liming, the secretary of the municipal government, Ye Niuping, the person in charge of the relevant units of the city attended the meeting at the main meeting place of the municipal government, and the heads of the district governments and relevant departments watched and listened to the conference at their respective venues.
The number of cases in Guangzhou decreased significantly in January from January
Guangzhou Daily News (All media reporter He Tao correspondent Huang Jinhui) Since the beginning of winter last year, the global bird flu epidemic has been on a high-profile trend, affecting nearly 40 countries and regions in the world. Since this year, a total of 16 provinces have reported cases of bird flu. The bird flu virus in our city has also entered an active period, but the overall outbreak can be controlled. At present, the human bird flu prevention and control work in Guangzhou has achieved certain results, and the development of the epidemic has slowed down. According to the statistics of the time of onset, the number of cases in February 2017 has decreased significantly from January.
Guangzhou Launches Joint Prevention and Control in Time
The Municipal Party Committee and the Municipal Government attached great importance to the prevention and control of human bird flu infection. Since the discovery of the case of bird flu in Guangzhou City last winter, Comrade Ren Xuefeng, Party Secretary of the Municipal Committee, and Mayor Wen Guohui of the Mayor have repeatedly stated that they must seriously implement the national and provincial work arrangements. In order to do a good job in prevention and control of bird flu and rescue work, Comrade Li Ming, the vice mayor of the municipal government, organized several prevention and control work conferences and risk assessments for epidemics, and made prevention and control strategies based on the situation of the epidemic and expert opinions.
At present, the Guangzhou Municipality has launched a joint prevention and control mechanism in a timely manner to promptly carry out emergency treatment and case treatment for epidemics and implement joint prevention and control of epidemic prevention and control measures. In order to cut off the human bird flu transmission route and do a good job in preventing and controlling the source, Guangzhou Municipality has strengthened the daily supervision and management of the live-bird trade market, and urged the market promoters and live-bird operators to implement the 1110 system (one-day-cleaning and one-week-long cleaning. , January closed, live poultry in hand); increased investigation and punishment of illegal feeding, sales, slaughter of live poultry and live poultry stalls around the market; focused on farms, live poultry markets, slaughterhouses, etc. Kill and purify, eliminate the source of infection.
Live bird trade preventive breaks
In order to ensure the health and safety of the citizens, the municipal government implemented preventive measures for the rest of the city in accordance with the needs of prevention and control of the epidemic: the municipal government decided to implement preventive measures for the rest of the city from January to March every month from 16 to 18; In the high-infection season of the H7N9 bird flu infection, the municipal government decided to adjust the February 2017 recession time from the original 16 to 18 days to 16 to 28 days in accordance with relevant regulations and in conjunction with expert assessments. During the rest period, the municipal health and family planning, agriculture, industry and commerce, urban management, and food and drug supervision departments jointly carried out special inspections. If any problems were found in the supervision, on-site supervision and supervision of the relevant departments in the area to carry out rectification and timely monitoring of the situation in the city , And organize personnel to conduct review to ensure that the rest of the measures are effective.
The effective measures for the prevention and treatment of bird flu are the implementation of “early detection, early reporting, early isolation and early treatmentâ€, in which early diagnosis and early medication can reduce severe cases and deaths. The health and family planning departments focus on strengthening prevention and control knowledge training, and carry out special inspections of the city's medical institutions to ensure that clinicians master human infection with H7N9 bird flu clinical diagnosis and treatment, and strengthen the clinician's concept of early drug use.
Guiding healthy consumer attitudes Health and family planning and agriculture departments actively implement monitoring of the external environment and live poultry in the poultry market in accordance with relevant regulations, actively increase the scope of monitoring, increase monitoring frequency, and strengthen monitoring density. Especially during the Spring Festival, front-line staff strictly follow the work plan. Carry out sampling and inspection work. The experts were organized to analyze the monitoring data in a timely manner to comprehensively assess the bird flu virus contamination and the risk of the outbreak in poultry sites, and provide the scientific basis for the government to adjust the prevention and control measures in a timely manner.
Through a variety of approaches, the prevention of human bird flu knowledge and health education have been widely carried out, so that the public can know that people infected with bird flu can prevent and control, guide healthy poultry consumption concepts and good hygiene habits.
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