Recently, the Jinshan Branch of the Shanghai Public Security Bureau
took criminal action against a new coronary pneumonia patient who deliberately concealed his true journey
on suspicion of obstructing the prevention and control of infectious diseases
(Male, 60 years old, currently living in Jinshan District, Shanghai, cured and discharged)
Compulsory measures
Because of Li's concealment of
, 55 close contacts were quarantined and observed. While
expressed great indignation at those who deliberately concealed
, we couldn't help but wonder: How exactly was
these 55 close contacts
delineated?
Song Canlei, Section Chief of the Infectious Disease Prevention and Control Section of Shanghai Jinshan District Center for Disease Control and Prevention
answered this question
△ Song Canlei
Faced with the most complicated cases, he entered the isolation ward for investigation
Li, who has now been subjected to criminal compulsory measures, was handled by Song Canlei most. A complicated case.
At 11:50 on February 2, a hospital reported a suspected case of Li to the Centers for Disease Control and Prevention, with fever accompanied by cough, fatigue and pneumonia, a history of travel to key areas for many days, and he had been in multiple departments of the hospital.
Song Canlei realized that this may not be an ordinary case, and formed a team of 6 transfer personnel, including two experts from the Municipal Center for Disease Control and Prevention in Jinshan.
△ Material inspection
After learning about Li's medical records for many days in the hospital, Song Canlei felt the seriousness of the situation.
concealed the travel history of Hubei and dealt with many people during the period
Li came to Shanghai from Nanchang, Jiangxi on January 24 and lived in a hotel in Songjiang. On the way home the next day, Li took a taxi and went to a convenience store. Since January 26, Li went to the hospital almost every day, but when asked about the epidemiological history, he only said that he had come from Nanchang, Jiangxi.
and Li's unusual increase in the number of doctors aroused suspicion by the doctor. After repeated questioning, Li finally revealed that he had traveled to Wuhan, Huanggang and other places in Hubei for three or four days before Nanchang, Jiangxi.
became ill on January 24 and entered the fever clinic on February 2. Li has dealt with medical staff, other patients, taxi drivers, hotel attendants, supermarket employees, etc. for many consecutive days, and he is not sure if there are more Possible close contacts. The long time span, the number of contacts, and the complexity of the situation are jaw-dropping.
Song Canlei said that Li's situation is also very special: first, he is 60 years old, his memory is not very good, and he lives alone without family members to help recall; second, his trajectory is complicated; third, his physical condition Not very good, not willing to cooperate.
In this case, Song Canlei and a colleague entered the isolation ward wearing secondary protective clothing to conduct a face-to-face investigation.
Since entering the isolation ward at 1:30 pm on February 2, Song Canlei and his colleagues have been in the isolation ward for nearly two hours. At the end of the investigation, the clothes of him and his colleagues were soaked.
Dozens of hours of hospital surveillance video do not let go of any clues
Song Canlei and his colleagues combed through Li's activity trajectory in the past ten days, so that every time point has a clear location corresponding to it. In the hospital, the hospital cooperates with the Center for Disease Control and Prevention to retrieve surveillance videos and investigate one by one; other public places are handed over to the public security department to assist in the investigation.
The Center for Disease Control and Prevention collected dozens of hours of daily surveillance video of Li's medical treatment. As long as there is Li's figure, Song Canlei and his colleagues will click the mouse to track them all the way. For those who appear about 2 meters around him, zoom in and check: whether Li and the other party wear masks, and whether the medical staff did it. Adequate protective measures...
△Hospital surveillance screening
After watching the video, Song Canlei’s colleagues went to each relevant department to conduct a review to determine the location, distance and other data related to close contacts estimated through the video , Are consistent with the actual situation.
According to the location map of the infusion room and monitoring one pair of faces
The hospital’s biggest difficulty in troubleshooting appeared in the infusion room of the emergency department. Because Li once had two infusions in two days, he stayed in the infusion room for more than two hours, and the infusion room has 79 seats, which is a crowded place.
Fortunately, the hospital confirmed that the windows of the infusion room were open for ventilation. Song Canlei said: “According to the requirements of the country and Shanghai, if it is a confined place, then those who were there at that timeAll patients need to be quarantined, and then the number of people will be even greater. "
Song Canlei and his colleagues took and measured the location map of the infusion room on the spot, and finally centered on the position of Li, according to the four positions on the left and right (about 2 meters), and within 2 rows (about 1.5 meters). Preliminary delineation of the range of close contacts. Those who were close to the scene and did not wear a mask were also included.
"In addition to looking at the location, we also need to determine the flow of people in the infusion room. For example, some patients may pass by Li when they get up to the toilet, or they may stand beside him for a short time. They may also be close contacts. "
△ In the flow adjustment work, after
initially delineated the relevant information of close contacts in the hospital, the hospital quickly reported the contact information of these people. The CDC contacted them one by one for review, such as asking the other party whether the type of mask they were wearing at the time was present. Physical discomfort, etc. The public security department also acted quickly according to the activity roadmap provided by the CDC, and finally designated another 8 close contacts.
Before Li’s test results came out, the Jinshan Epidemic Prevention and Control Headquarters, A list of these 55 close contacts has been obtained. Fortunately, these 55 close contacts have now been lifted from centralized isolation and returned home safely.
