The first batch of test reports returned by the Autonomous Region Center for Disease Control and Prevention also included the test results of domestic animals.

The early investigation team collected blood from 21 sheepdogs, 27 sheep and 18 cattle in M village for plague serological surveillance, and the results showed that 11 of the 21 sheepdogs were positive, with a positive rate of 52.4%, and both cattle and sheep were negative.

The goat skin slaughtered by Tenzin in the first patient was subjected to a reverse hemagglutination test, and the titer was 1:100, which reached the positive standard.

Combined with the results of the on-site simple experiment and the first batch of test reports returned by the Autonomous Region Center for Disease Control and Prevention, the expert group confirmed that the incident in Village M was an outbreak of pneumonic plague, and the cause of the outbreak was the serious epidemic among local marmots, which affected the emergence of pneumonic plague patients in humans, and then spread through human-to-human contact, causing an outbreak of pneumonic plague in the area.

After the outbreak of pneumonic plague was determined, Nan Zhiqiao suggested that the traffic from M Village to the outside world, the traffic leading to the county seat by various means, and the traffic section from the county seat to the city should be blocked, and a traffic improvised station should be set up.

Due to the rapid development of the epidemic, the high case fatality rate, and the situation of patients going out without permission, according to the plague control plan, in order to effectively control the spread of the epidemic, the epidemic area should be blocked.

The county magistrate of L County, as the commander of the on-site epidemic investigation and handling headquarters, reported to the municipal government that with the approval of the autonomous regional government, the epidemic area was blocked, and the local public security and armed police carried out the blockade task.

In the epidemic area after the strict lockdown, except for the staff who are conducting epidemic investigation and treatment, no pedestrians, vehicles, horses, etc. can enter M Village, and no people, animals, or objects from M Village can leave the village.

Traffic quarantine has been set up on the traffic arteries within 10 kilometers of the epidemic area, the body temperature of pedestrians, passengers, drivers, and conductors has been measured, vehicles have been disinfected, and cattle, sheep, dogs, marmots and other pastoral animals have been strictly transported out.

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After the investigation team made strict arrangements for lockdown and quarantine, Dawa's husband, Nima, arrived in L county and went to L county hospital for treatment.

Doctors at the county hospital inquired about Nima's origin and clinical manifestations, and found that it was one of the cases of unexplained death in Village M, so he immediately isolated Nima and reported it to the CDC of L County.

People from the L County Center for Disease Control and Prevention immediately rushed to the county hospital to conduct an epidemiological investigation, and at the same time collected samples of Nima's blood and blood sputum, and sent them to the laboratory of the Autonomous Region Center for Disease Control and Prevention for testing.

According to Nima's own account, after leaving M Village that night, he first rode to G Township, and then drove to L County by himself, accompanied by three acquaintances on the way, and lived in eight herdsmen's homes, and his belongings and clothes were placed in the homes of many farmers and herdsmen.

According to Nima's account, people from the L County CDC investigated the people Nima had come into contact with on the way from M village to L county, and finally found that there were 111 people who had direct contact.

The local health authorities immediately placed them under medical observation for nine days as direct contacts of Nima.

With Nima's whereabouts, the epidemic control in M Village has also come to an end, and Nan Zhiqiao, Ye Zhenzhen, Lao Zhao and Duo Ji, part of the on-site investigation team, left M Village and came to the county seat of L County.

After inspecting the situation of L County Hospital and Nima, Nan Zhiqiao suggested that due to the large outpatient volume of the county hospital, there was no relatively opposite area to isolate pneumonic plague patients, and Nima needed to be transferred to the nearest township health center to the county seat, because it was relatively independent and convenient for isolation.

In order to prevent mistakes during the transfer, Nan Zhiqiao and Zhen Zhen personally followed.

Before the transfer, Nan Zhiqiao personally demonstrated the use of protective equipment and the matters that should be paid attention to during the transfer.

The medical staff responsible for the transfer of Nima are well prepared, and at the same time, a spittoon is prepared for the patient to hold the sputum coughed up by the patient, and a full-time doctor monitors Nima's physical condition.

After arriving at the township health center, Nima was sent to an isolation ward, where she was treated by a special doctor.

The vehicle transporting Nima was thoroughly disinfected, and Nima's sputum was also disinfected.

At the same time that Nima was sent to the township health center, the necessary rescue treatment drugs and equipment were also sent at the same time.

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Soon, the second batch of test reports of the Autonomous Region Center for Disease Control and Prevention came out, and the test results of 6 burial death cases were all positive for Yersinia pestis, so far, the outbreak of pneumonic plague in M Village, with 14 confirmed cases and 6 deaths, with a case fatality rate of 43%, 1 possible case and 1 death were found.

According to the expert group's confirmed opinion, the L County CDC revised the report of this incident through the epidemic network reporting system, and the cluster of unexplained deaths was changed to a pneumonic plague outbreak event.

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Just when the epidemic was gradually controlled and there were no new cases, Ye Zhenzhen, who was in the county seat of L County on the Qinghai-Tibet Plateau, suddenly had a severe headache and was delirious.

The incident happened suddenly, when Zhen Zhen was in the reading room of the L County Center for Disease Control and Prevention, helping to sort out the information of the pneumonic plague epidemic, and Nan Zhiqiao was also on the side, Zhen Zhen suddenly coughed violently without warning, and then a large amount of blood-colored foamy sputum gushed out from her mouth and nose.

Ye Zhenzhen was rushed to L County Hospital.

The doctors at the county hospital, seeing Zhen Zhen's condition, coughing up phlegm, coughing up blood, difficulty breathing, coupled with the recent plague epidemic, the first thing the doctors thought of was that they were infected with plague bacillus.

Without laboratory tests, Nan Zhiqiao told the doctors with great certainty, "She is not infected with Yersinia pestis, it is high-altitude pulmonary edema, and she will be treated with hyperbaric oxygen first." ”

At the same time of oxygen inhalation, Nanzhiqiao also added aminophylline to glucose solution and slowly instilled it intravenously.

Zhen Zhen was lying on the bed in L County Hospital, because of the effect of instillation of aminophylline, the pulmonary artery pressure has been lowered, and the cough symptoms have been reduced, but she is still in a semi-comatose state.

Nan Zhiqiao's heart is anxious like never before, when she was in Paris before, Zhen Zhen had a high fever caused by cold and fright in the stomach, which further caused cerebral edema, but fortunately she was treated in time and picked up a small life from the ghost gate, and now she is in a coma because of plateau pulmonary edema, and the medical conditions here are really unreassuring.

Nan Zhiqiao dialed Grandpa Nan's phone and only said that he wanted to urgently call Nanmu Group's nearest private jet to L County, and Grandpa Nan did not ask the reason and did it directly.

Half an hour later, a helicopter with the logo of Nanmu Group landed on the open lawn of the L County Hospital.

The helicopter was accompanied by two paramedics.

The paramedics carried her onto the helicopter on a stretcher, accompanied by Nan Zhiqiao, and the treatment of her continued on the plane.

The helicopter first arrived at Lhasa Gonggar Airport, transferred to a large private jet, and flew directly back to Beijing.

Because he came back from the epidemic area, Nan Zhiqiao directly sent Zhen Zhen to the isolation ward of JS Hospital, although Nan Zhiqiao was sure that Zhen Zhen was not infected with the plague, but still according to the procedure, he decided to isolate himself and Zhen Zhen here for 9 days of observation.