At present, nucleic acid testing is the top priority of epidemic prevention and control, so what kind of testing process has been carried out for the collected nucleic acid samples?
It was mid-afternoon, in the Shaanxi Baimei Genetic Medicine Laboratory in Fengdong New Town, the staff wearing protective clothing in front of the workbench were busy... "We are here in Baimei 'Fengdong Laboratory', a large nucleic acid testing laboratory." Among our fixed nucleic acid laboratories in the Midwest, this is the largest one. ”
Zeng Xianfei, head of the laboratory, said that more than 200 testing personnel will conduct 24-hour uninterrupted testing of nucleic acid samples collected from many districts and counties in the city every day. "We will enter the sample in an information, and after a typesetting operation, the sample will enter the second phase expansion area of our laboratory. There we will extract nucleic acids from the samples, and by enlarging the nucleic acids of the virus, we can find out if there is a new coronavirus infection. ”
Nucleic acid samples are tested by laboratory staff
The entire laboratory is extremely well guarded, and there is a one-way passage between the middle corridor and the innermost laboratory, thus avoiding infection. In addition, all aspects of nucleic acid testing are completed in isolation rooms with different negative pressures. It is understood that the daily test volume of the laboratory can reach nearly 100,000 tubes. If all are tested according to the 10:1 mixed sampling test, the daily detection volume can reach nearly 1 million people. "During the large-scale testing process last year and this year, our laboratory was one of the most important testing laboratories."
Xiao Lei, who lives in Xi'an, is the leader of the third group of the new crown virus testing team, responsible for the coordination and command of the entire team, and according to him, he has been working here for five years. "I was recalled to the company from the seventh, and until now I have been working continuously, with a rotation in between, and there is no other rest time." Xiao Lei had just been married for half a year, and it was the occasion of the newlywed Yan'er, but now he had to be on duty at work and could not go home to see his wife. "We are the closed-loop management implemented by the company, after work, we will return to the hotel, and the meal is also arranged by the company, four shifts a day, each shift is six hours, and everyone is more difficult."
Nucleic acid testing is done in different isolation rooms
Relying on the professional strength and top expert team of Shaanxi Baimei Gene Co., Ltd., the "Fengdong Laboratory" of the Xixian New Area Regional Medical Inspection Center adopts automated testing equipment to achieve a daily detection of 130,000 tubes of new coronavirus nucleic acid detection, and issue a test report within 4 hours.
In terms of hardware configuration, the laboratory covering an area of 1200 square meters is built in strict accordance with the PCR laboratory standards to ensure the independence of each district in the laboratory. While adopting a negative pressure device, equipped with a full row (B2) biosafety cabinet, and packing and transporting the new crown sampling specimens in strict accordance with the regulations, all laboratory staff must undergo biosecurity training and strictly control the safety of sampling, transportation, testing and other aspects.
Interior view of the laboratory section
At present, large-scale nucleic acid testing has become an important part of regional epidemic prevention and control. The daily operation of the "Fengdong Laboratory" can help the region respond quickly, detect suspected cases on a large scale and with high throughput, and check high-risk groups. In addition, in the establishment of the precinct mobile support system, the construction of the team of testing personnel, and the construction of nucleic acid testing resource information system, it has also provided a positive impetus for the scientific, accurate and normalization of epidemic prevention and control.