If the pig food is safe, the world will be safe
Jin Meilin, academician of the Chinese Academy of Engineering
More than 40 years of perseverance in the race against the virus
Use science and technology to empower animal disease prevention
Just this year
She was awarded the title of National 38 Red Flag Bearer
Today, let's get to know her
"The country is people-oriented, the people take food as the sky, food is safety first, and security is the main thing." Jin Meilin, academician of the Chinese Academy of Engineering and professor of the College of Veterinary Medicine of Huazhong Agricultural University, has been sticking to the front line of animal disease prevention and control scientific research, teaching and technical services, focusing on the prevention and control technology of zoonotic infectious diseases such as animal influenza and Streptococcus suis and important animal diseases, so that more safe and secure meat, eggs and milk can be brought to the table of Chinese.
Results in less than 3 minutes
Retrofitting kits to improve the efficiency of virus detection
Walking into the laboratory of Huazhong Agricultural University, Academician Jin Meilin first introduced to the Yangtze River Cloud News reporter that the team's latest "transformed and upgraded" nucleic acid detection kit is the focus of the team's recent research.
This nucleic acid detection kit is developed with nano and other materials, liquid chips and other technologies, and after successful development, the new kit will further improve the detection efficiency of animals carrying viruses.
Jin Meilin said: "The sensitivity of such a preparation has been increased by 100 times on the original colloidal gene test strip, and the results can be obtained in less than 3 minutes, so that the detection and early warning threshold can be further moved forward." ”
China's first swine flu vaccine was developed
Helping the aquaculture industry to increase efficiency by up to 57.7 billion yuan
For animal diseases, moving the early warning threshold forward is the foundation, and developing corresponding vaccines to prevent them in advance is the key. How to break the foreign monopoly and solve the "stuck neck" problem of swine flu has always been a major topic that Academician Jin Meilin has been diligently pursuing.
In 1978, swine dysentery was introduced to the mainland, endangering the safety of humans and animals. Jin Meilin plunged into this research work for eight years, aiming at the bottleneck of strict anaerobic and difficult separation of swine dysentery disease, innovating the culture system, researching a series of immunodiagnostic technologies, combined with drug purification strategies, and effectively curbing the epidemic of the disease.
Subsequently, she led the team to participate in the treatment of the "abortion storm" of porcine parvovirus in 2000, the streptococcal disease of Sichuan in 2005, the "H1N1 influenza" of A(H1N1) in 2009, and the "mysterious disease" of elk, a first-class protected animal in 2010......
In 2018, African swine fever struck, and the continent's agriculture was severely affected. At that time, due to the complexity of the virus and the lack of technology, the development of African swine fever vaccine was a worldwide problem. Jin Meilin was not afraid of difficulties, led the team to face the difficulties, and began to research African swine fever vaccine and related technologies.
"It's very difficult for us to find a single cell with a high expression of antibodies out of thousands of single cells. In the six years since, whether it is in the laboratory, farm, epidemic site, or in the industrialization base of biological agents, Jin Meilin can always be seen. During this period, they made breakthroughs in the research and development of African swine fever vaccines, and took the lead in developing 7 African swine fever detection technologies, among which nucleic acid detection kits were popularized and applied.
Industry insiders know that streptococcal disease and Haemophilus parasuis are the two most serious bacterial diseases of pigs in the world, and Streptococcus suis type 2 infection leads to high mortality. Jin Meilin led the team to quickly "unveil the list", and systematically clarified the pathogenic and immune molecular basis of important pathogenic bacteria through research, so as to achieve accurate and high antigen yield, and create a series of highly effective vaccines. This achievement has obtained 6 new veterinary drug registration certificates, and the innovative research and development of porcine bacterial disease vaccine ranks among the top in the world.
For more than 40 years, Jin Meilin has led the team to analyze the interaction mechanism between animal influenza viruses and hosts, and took the lead in creating a "fast, accurate and inexpensive" detection technology with "fence edge", and developed China's first swine influenza vaccine. They have also created a series of highly effective vaccines, with a total of 259 million doses of vaccines applied, helping the aquaculture industry increase efficiency by up to 57.7 billion yuan.
Create a modern biologics engineering technology system
Safeguard public health security
"The source of happiness in scientific research lies in the exploration of unknown areas, the discovery of the beauty of science, and the satisfaction of one's own interests. Kim Mellin said.
For more than 40 years, Jin Meilin has been working on the front line of scientific research, carrying out epidemiology, pathogenic mechanism, new vaccines, diagnostic preparations, microecological preparations, The research and development of biotherapeutic preparations has solved the key technical problems in the R&D and industrialization of animal biological agents, and made breakthroughs in a series of key technologies; it has created a modern engineering technology system for biological preparations, created a series of safe and effective biological prevention and control products, and obtained a series of original scientific and technological achievements; it has realized the transformation of achievements and popularized and applied them throughout the country, making significant contributions to the cause of animal epidemic prevention and public health safety in the mainland.
The scientific research achievements are not easy to come by, and Jin Meilin has always carried out research around the industry demand-oriented and problem-oriented, established a platform, cultivated talents, broken through technical barriers, developed innovative products, and benefited independent research and development technologies and products to the agricultural breeding industry, so as to realize the same health concept of humans, animals and the environment.
She adheres to the front line of teaching and educating people, and puts forward the concept of encouragement with the young scientific and technological workers in the team: take root downward, take theory as the cornerstone, deeply cultivate the technical track, and cross technical barriers; grow upward, take application as the traction, break through the blind spot, expand the technological highland, dare to break through, take innovation as the drive, create a world business card, and empower the national brand.
According to statistics, she has trained 45 doctors, 90 masters, and 12 postdoctoral fellows. She has served as the head of the Department of Preventive Veterinary Medicine for 16 years, and a number of outstanding talents in the field of veterinary medicine have emerged from the platform of the National Fund for Distinguished Young Scholars, Distinguished Scholars, and Scientists in the Industrial System.
(Changjiang Cloud News reporter Wang Jiarui, Tang Qinghui, Xie Yajing)