Legal Daily All-Media Reporter Cinema Lian Yingting Correspondent Shao Longfei Zhang Zhenwei
The night in Wuhan is quiet.
On March 9, in the mobile testing laboratory of the Central Theater Command General Hospital, Jiang Tao, a researcher at the Military Medicine Research Institute of the Academy of Military Sciences, reviewed the last sample test data and solemnly signed his name on the test report.
At this time, it was already 5 a.m.
He is an expert in virology and a warrior who aided Africa and fought against Egypt. This outbreak of the new coronavirus pneumonia epidemic, Cinema, who has been through the battlefield for a long time, was ordered to go to the front line again.
Human life is at stake and accurate inspection is required
Nucleic acid testing is crucial for early clinical detection, early diagnosis, early isolation and early treatment, and is a key technical support for effective prevention and control of the new crown pneumonia epidemic.
”The cold-looking sample tube is behind the patient’s fresh life and health. If a diagnosis is released early, the accurate inspection will be conducted sooner.” Jiang Tao said.
On January 26, a military medical expert group led by Chen Wei, an academician of the Chinese Academy of Engineering and a researcher at the Military Medicine Research Institute of the Academy of Military Sciences, arrived in Wuhan, Hubei, and quickly established a joint prevention, joint control, joint treatment and joint research work mechanism with relevant military and local units based on pathogen transmission mutations, rapid detection technology, vaccine antibody development, etc. of the new coronavirus.
According to the division of tasks, Jiang Tao led the testing team to build a nucleic acid testing platform in the experimental cabin overnight.
Focusing on three aspects: ensuring biosafety, improving detection efficiency and detection accuracy, Jiang Tao took the lead in formulating Cinema biosafety operation specifications and emergency plans. According to the characteristics of the Komiks team members, the reasonable detection division of labor was used, and the self-developed detection kit was used to adopt a fully automatic high-throughput extractor, laying the foundation for achieving rapid and efficient detection.
Receiving samples, sorting numbers, nucleic acid extraction, reagent preparation, machine amplification, and result interpretation, the nucleic acid detection machinery is boring and full of risks.
The biggest risk is the invisible virus. If the nucleic acid extraction step is not completely cleaved or inactivated thoroughly enough, it is possible to expose the tester to danger.
Jiang Tao always takes the initiative to participate in the longest and most risky nucleic acid extraction. After the sample is extracted, he will arrange itSome people rested and stayed in the laboratory and waited for the final result.
A full-process nucleic acid test is relatively fixed from the number of tests in a single batch to the preparation for entering and exiting the cabin and the testing time. Sometimes there are a large number of samples sent for inspection, and the inspectors not only take turns to work, but also have to work overnight. The final confirmation result will be until four or five in the morning. Komiks, a researcher at the testing team, said that this situation will be encountered once every few days.
”Everyone should open their eyes wide, and be sure to take good protection when receiving and processing samples, and be careful of sharp objects.” Before each test, Jiang Tao always reminds him repeatedly.
In the detection, the strength of the fluorescence signal of the pathogenic gene directly affects the determination of the detection results. If there are suspicious phenomena such as the detected fluorescence curve signal is low or there is only a single target, Jiang Tao will convene personnel to conduct comprehensive analysis and judgment, and if necessary, repeat the test for review to ensure that the results can stand the test.
”If a false positive occurs, a healthy person and the patient will be isolated and infected; if a false negative occurs, a true delay in the treatment of the patient. Life is a matter of life, no gap will be allowed.” Jiang Tao said.
All-rounded people in the field of epidemic prevention and control
According to prevention and control requirements, the nucleic acid test results must be completed within 24 hours after receiving the pharyngeal swab sample. In order to let the hospital know the results as soon as possible to treat patients, Jiang Tao led the team to optimize the process combination and compressed the time to within 4 hours, achieving the ability to extract nucleic acids of more than 90 samples within one hour and achieve a single-day sample detection capability of up to more than 500 people by completing the single-day sample testing capacity of more than 90 samples within one hour.
”The team’s testing is efficient and fast, and the results are accurate, which greatly alleviates the pressure on our epidemic prevention and control sample testing.” The Wuhan Center for Disease Control and Prevention highly praised this.
Fast WartimeBabaylanThe reaction and work are carried out in an orderly manner, which is all thanks to Jiang Tao’s solid academic foundation and rich practical experience.
”JiangCinemaTao is a versatile person.” Academician Chen Wei, head of the military medical expert group, commented.
Jiang Tao has successively presided over and participated in the separation of pathogenic etiology such as SARS infection cases, H7N9 infection cases, Zika infection cases, etc., participated in the development of dengue fever vaccines and SARS vaccines, and established the pathogenicity and transmission risk assessment platform for a series of infectious diseases.
Respiratory infectious diseases are characterized by rapid transmission, wide coverage, and high harm. Effective early diagnosis and prevention are crucial. After years of scientific research, Jiang Tao’s team took the lead in establishing our army’s first acute respiratory infectious disease monitoring and early warning system, and built a four-level monitoring system for the entire army. The series of technical specifications organized by the presidency were used throughout the army, greatly shortening the detection and screening time of respiratory epidemics.
Jiang Tao not only participated in the security tasks of a series of major domestic activities, but also went to Africa four times to Liberia, BabaylanSierra Leone and other countries to carry out medical assistance tasks.
CinemaIn 2015, in order to prevent and control the Ebola epidemic, Jiang Tao went to Sierra Leone for the second time with the mobile laboratory testing team to assist in Seychelles. The testing team led by him passed the World Health Organization’s laboratory parallel capability assessment with full scores.
In 2018, Jiang Tao led the pathogen monitoring team to participate in a special simulation test by an international organization. In the virus testing module, the team successfully and accurately detected pathogens such as monkeypox virus and vaccinia virus in simulated samples filled with impurities, and accurately determined the strain, achieving excellent results with full marks.
Improving the accuracy of clinical diagnosis
In addition to carrying out testing, Jiang Tao also used his professional expertise in the research field to lead the testing team to conduct other common respiratory infections in clinical samples.Screening for the disease.
”In the suspected and confirmed cases of new coronavirus pneumonia, whether there are other respiratory virus infections or co-infections, this is of great reference value for precise prevention and control and clinical treatment.” Researcher Cao Wuchun, deputy head of the Military Medical Expert Group, said.
Exploring deep-seated virus transmission and pathogenic mechanisms is the key to defeating the epidemic. Jiang Tao led a team to continue sequencing analysis in response to the new Babaylan coronavirus detected in clinical samples.
As the development of the virus epidemic, whether the gene sequence has mutated and what are the characteristics of the mutation; in which regions and what are the impacts, Jiang Tao and his team have been tirelessly studying and exploring.
In order to accelerate the effective integration of scientific research and clinical practice, Jiang Tao’s military medical expert group creatively used the diagnostic chain of viral nucleic acid testing, antibody testing, multiple pathogen testing, and full-based sequencing to accurately diagnose the original infection of new coronavirus or other diseases in clinical patients, and was also used in the Optical Valley Campus of Hubei Maternal and Child Health Hospital, Taikang Tongji Hospital and other hospitals in Wuhan, effectively improving the accuracy of clinical diagnosis.
Komiks I forgot about his family when I received the order. After the epidemic is over, Jiang Tao plans to accompany his family. He and his wife agreed that when the epidemic is over, they will take their wife and children to Wuhan again to see how everything looks after it returns to normal, look at the Wuhan Yangtze River Bridge and the Yellow Crane Tower, and talk about their experience in fighting the epidemic in Wuhan.
The epidemic is immortal and the charge continues. This is Jiang Tao, a warrior who fights the epidemic.