On March 25th, 2022, 3 cases of positive infection were found in Tai 'an City, and close contacts found positive infection 1 case.

First, the basic situation of infected people

Infected person 1: male, truck driver. The driver was tested for nucleic acid in the Second People's Hospital of Tiexi District, Siping City, Jilin Province on March 9, 2022, and the result was negative. On the afternoon of March 24th, the mixed test results of 10 and 1 in xintai city Third People's Hospital were abnormal. Nasopharyngeal swabs were collected around 23: 00 on March 24th and sent to Taian CDC for nucleic acid detection. On March 25th, the test result was 1:50 positive. Now it has been transferred to a designated hospital. Through comprehensive epidemiological history, clinical manifestations, laboratory examination and imaging examination, it was diagnosed as asymptomatic infection in novel coronavirus.

Infected person 2: male, truck driver, accompanying infected person 1, driving two trucks to deliver goods in Thailand. On the afternoon of March 24th, the mixed test results of 10 and 1 in xintai city Third People's Hospital were abnormal. Nasopharyngeal swabs were collected at 23: 00 on March 24th and sent to Taian CDC for nucleic acid detection. On March 25th, the test result was 1:50 positive. Now it has been transferred to a designated hospital. Through comprehensive epidemiological history, clinical manifestations, laboratory examination and imaging examination, it was diagnosed as asymptomatic infection in novel coronavirus.

Infected person 3: Male, riding in the same truck as infected person 2. On March 2 1 day, the driver was tested for nucleic acid, and the result was negative. On the afternoon of March 24th, the mixed test results of 10 and 1 in xintai city Third People's Hospital were abnormal. Nasopharyngeal swab was collected at 23: 00 on March 24th, and sent to the municipal CDC for nucleic acid detection. On March 25th, the test result was 1:50 positive. Now it has been transferred to a designated hospital. Through comprehensive epidemiological history, clinical manifestations, laboratory examination and imaging examination, it was diagnosed as asymptomatic infection in novel coronavirus.

Infected person 4: female, hotel staff, as close contacts of infected person 1, 2, 3, centralized isolation. Nasopharyngeal swab was collected at 23: 00 on March 24th, and sent to the municipal CDC for nucleic acid detection. On March 25th, the test result was 1:50 positive. Now it has been transferred to a designated hospital. Through comprehensive epidemiological history, clinical manifestations, laboratory examination and imaging examination, it was diagnosed as asymptomatic infection in novel coronavirus.

Second, the activity track

The infected person 1: 19 was tested for nucleic acid in the Second People's Hospital of Tiexi District, Siping City, Jilin Province on March 9, and the result was negative. March 2 1, morning 1: 40, get off at Jinan Wande exit of Jingtai Expressway, arrive at Cargill Feed Factory near Longteng Road 1766 in Tai 'an High-tech Zone at around 3: 00 in the morning, rest in the car, wash the car at 7: 00 and check out at 8: 30. At 8: 56, go to the feed factory to register and queue up for unloading. /kloc-0: 4: 55 to start unloading,/kloc-0: 5: 45 to leave the feed factory. After that, I drove to Luchuan Hotel near the Northern Song Vegetable Wholesale Market in Liangzhuang Town, Tai 'an High-tech Zone, stayed in Room 308, went back to my room to rest after eating in the hotel restaurant, and never went out again.

On March 22nd, at 7: 00, pay at the unnamed garage near Luchuan Hotel, 1 1: 44, and then return to Room 308 of the hotel. /kloc-leave the hotel at 0/5, get a haircut at Meizhiyuan Barber Shop,/kloc-check out at 0/6: 20; 17: 24 I went shopping at Youbaike Supermarket, then went back to Room 308 of the hotel and never went out again.

On March 23rd, I stayed in Luchuan Hotel, didn't have breakfast and lunch, but had dinner in the hotel restaurant.

On March 24th, after breakfast in the hotel, I took the A36Z52 bus carrying infected persons 2 and 3 in room 12, and went to the Third People's Hospital of Loude Town, xintai city to collect nucleic acid. 13+04 paid the fee. After that, I went to the stall operated by Zhang Moumou in Yuanxi Farmers' Market to buy grasshoppers and snails. Return to the hotel by bus, buy shampoo at Youbaike Supermarket, and pay in cash; After returning to the hotel, I didn't go out until the investigation was over.

The infected person got off the Beijing-Taiwan Expressway at the Wande exit in Jinan at 0: 40 am on March 2, 265438, and arrived at the car wash near Longteng Road 1766 Cargill Feed Factory in Tai 'an High-tech Zone at around 3 am, and rested in the car until 7 o'clock. At 8: 00, 10, go to the concierge of the car wash to register; After washing the car, enter the feed factory at 8: 46, unload the goods at 14, and have lunch in the car at the company gate; 14: 50 and drive away from the feed factory; 17, check in at Luchuan Hotel near Northern Song Vegetable Wholesale Market in Liangzhuang Town, Tai 'an High-tech Zone. Dinner was delivered to my room by the hotel staff, and I didn't go out after that.

On March 22, I went to the flat noodle restaurant next to Luchuan Hotel for dinner at 9: 00 am, and then went back to the hotel without going out.

On March 23rd, I didn't go out in my room in Luchuan Hotel.

On March 24th, after breakfast in Luchuan Hotel, I took the infected person in room 12 1 and infected person 3 to the Third People's Hospital of Loude Town, xintai city, and paid the fee 13+04. After that, I went to the stall operated by Zhang Moumou in Yuanxi Farmers' Market to buy grasshoppers and snails. Then return to the hotel by car, buy shampoo at Youbaike Supermarket and pay in cash; I didn't go out when I went back to the hotel for investigation.

On March 3, 2 1, the infected person got off the Beijing-Taiwan Expressway at the Wande exit in Jinan in the early morning of 1.40, and arrived at the car wash near Cargill Feed Factory, Longteng Road 1766, Tai 'an High-tech Zone around 3: 00 a.m. and rested in the car. At 9: 07 am, go to the breakfast car near the car wash to buy breakfast; After that, I walked to the affordable Guanzhuang Community in Tai 'an High-tech Zone for nucleic acid detection, and the test result was negative. After the test, I went back to the feed factory to wait. 17 or so, I returned to Luchuan Hotel with the infected person 1 and infected person 2, and the dinner was delivered to my room by the hotel staff, and I didn't go out after that.

At 9: 00 on March 22nd, 16, I went to Duyiwei restaurant for dinner, went shopping at Youbaike Supermarket at 9: 24, and then went back to the hotel. In the afternoon 16: 22, I went shopping at Youbaike Supermarket, and then I went back to the hotel and didn't go out.

March 23rd 12: 58 went to Lizhi Restaurant to buy cooked food, 13: 09 went to Wu Jun Joke Supermarket to buy food, and then returned to the hotel without going out.

On March 24th, after breakfast in Luchuan Hotel, I took the infected person in room 12 1 and infected person 2 to the Third People's Hospital of Loude Town, xintai city, and paid the fee 13+04. After that, I went to the stall operated by Zhang Moumou in Yuanxi Farmers' Market, bought grasshoppers and snails, and left by car at 13: 56; After returning to the hotel by car, I will go to Youbaike Supermarket to buy shampoo and pay in cash. I didn't go out when I went back to the hotel for investigation.

The infected person stayed in Luchuan Hotel from 4: 03 on February/Kloc-0 to March 24th, and did not go out.

Epidemiological investigation and close contact tracking have been carried out on the above cases, the risk points involved have been investigated, and various risk personnel have been classified and controlled.