Zhou Lao patiently explained, "Psittacosis is a zoonotic disease, according to our previous investigation, it is suspected that an outbreak in the kindergarten is related to the budgies you sell here, according to relevant regulations, our CDC has the right to conduct a comprehensive investigation of your store." ”

The boss remembered that he also felt unwell after dealing with the dead bird a few days ago, and he casually ate the cold medicine and antibiotics stored at home, and he only got better recently, could his symptoms at that time be related to the dead bird?

The boss first asked all the customers in the store to leave, and only after the customers had left did he talk to the CDC people, "Comrade CDC, what are the symptoms of psittacosis you mentioned?" ”

"The symptoms are different for each person, but they are similar to cold symptoms in the early stage, and they will cause different complications in the later stage, mainly pneumonia, meningitis, etc., and in severe cases, people will die."

"Has anyone died?" The boss asked.

"Not yet, but there are two patients with severe pneumonia who are already on the verge of death." Zhou Lao deliberately said it very seriously.

The boss is worried about himself, although he feels a little better now, but does not rule out the possibility of recurrence, the boss told the truth to the people in the disease control, "Some time ago, there were a lot of dead birds in my store, and two died yesterday, I also had a cold two days ago, but after taking cold medicine, antibiotics have been much better recently, is my situation also psittacosis?" ”

"Not sure, we're going to take your blood and bring it back to the lab for a detailed examination."

This time, the boss was very cooperative, rolled up his sleeves, and stretched out his arm, "You can collect blood now, and my shop, you can check whatever you want." ”

Wang Xiaoxiao picked up a blood collection tube to draw blood from the boss, and others routinely sampled the bird cages in the store and the surrounding environment.

After the blood was drawn, the boss actively reflected the situation, "Comrade of disease control, let me tell you about the situation, in fact, in addition to my shop, there are cases of birds dying in other stores in the entire flower and bird market, but there are only light and severe." ”

The owner provided an important clue.

Zhou Lao arranged for the rest of the emergency team to act separately to investigate all the stores in the entire flower and bird market, focusing on collecting environmental samples with dead birds and the physical conditions of relevant contacts.

After Gu Yanan sent the samples from Grandpa Li's family to the CDC Laboratory, she went to the Qingheyuan Flower and Bird Market to help.

In the evening of the same day, all the investigations in the Qingheyuan Flower and Bird Market were completed, and the CDC team brought a large number of specimens to the CDC laboratory.

In response to the outbreak, colleagues in the laboratory had to work overtime overnight.

A few hours later, the test results came back.

Chlamydia psittaci was detected in guano and in samples from shops where dead birds appeared in Qingheyuan Flower and Bird Market.

People who have been exposed to dead birds, including antibodies to Chlamydia psittaci in the serum of boss Zhang Yongfa, have confirmed that they have been infected.

The blood and sputum of the 4 children who became ill in Xiaohonghua Kindergarten were positive for Chlamydia psittaci nucleic acid, confirming that the outbreak was psittacosis.

Chlamydia psittaci nucleic acid was also detected in the blood and sputum of Grandpa Li and Li Lele, confirming that the culprit who caused severe pneumonia was Chlamydia psittaci.

Chlamydia psittaci was detected in guano on the balcony of Grandpa Lee's house.

Chlamydia psittaci was detected in Uncle Ge's body, in the guano in Uncle Ge's courtyard, and in the bodies of individual birds.

After epidemiological investigation and laboratory testing by the Center for Disease Control and Prevention, it was determined that this was a zoonotic psittacosis outbreak caused by Chlamydia psittaci, affecting birds and related contacts in the Qingheyuan Flower and Bird Market.

After confirming that the epidemic was a zoonotic psittacosis, the hospital responded to the treatment, the patient's condition improved, and the birds and the surrounding environment of the Qingheyuan Flower and Bird Market were also treated accordingly, and there were no new cases, and the epidemic was controlled.

——

Lianhai Center for Disease Control and Prevention, Emergency Office.

Gu Yanan wrote a summary report of the epidemic in front of his desk computer.

Although there are sporadic reports of Chlamydia psittaci infection cases in Lianhai City every year, it is the first time to see a large-scale collective outbreak like this, and the corresponding investigation and treatment measures are of great reference significance.

In order to write a paper, it is necessary to conduct more in-depth research, in addition to epidemiological investigation and basic laboratory testing, to isolate the strain of the epidemic, and to do genetic sequencing and sequence analysis.

All of this requires the cooperation of the laboratory, Gu Yanan was about to contact the laboratory, and Uncle Ge suddenly called, hoping that Gu Yanan would pick him up and discharge him.

Considering that Uncle Ge was alone, and Nan Hanfei, who usually took care of him, was not by his side at this time, Gu Yanan was very enthusiastic to agree.

——

Lianhai First People's Hospital, Department of Infectious Diseases.

Uncle Ge's ward.

When Gu Yanan entered the ward, Uncle Ge had already packed his things by himself, and as long as he completed the discharge procedures, he could leave with his bag.

Gu Yanan took the certificate given to her by Uncle Ge and was about to go to the discharge office to go through the formalities, but suddenly another person broke into the ward.

Nan Hanfei suddenly appeared.

Gu Yanan was stunned, "Captain Nan, are you back from a business trip?" ”

Nan Hanfei's face was a little haggard, but after seeing Gu Yanan, his smile began to become sunny again, "As soon as I came back, I received a call from Uncle Ge, saying that he was going to be discharged from the hospital, and I came to help." ”

Uncle Ge smiled mysteriously, as if he had premeditated, urging the two of them to go through the formalities together.

In the process of going through the discharge procedures, Nan Hanfei took the initiative to talk to Gu Yanan and talked about his experience of business trips in the past few days.

"A few days ago, my mobile phone was turned off because our police received an anonymous report call, the whistleblower said that there is a group of bioterrorists in our city who are developing a large number of highly pathogenic bacteria and viruses, the whistleblower said in great detail, our police squatted at the address he said for a few days, and finally did not catch anyone and only found some instruments commonly used in biochemical laboratories."

"Did you find a bacteria or a virus?"

"No, so the police have temporarily characterized the anonymous report call as a prank, but I think there are still doubts."

"What's the doubt?"

"There are obvious traces of the scene being cleaned up, and it is very likely that the terrorists received the news in advance and cleaned up the scene."

"Do you think there really are bioterrorists?"

"Not sure, because I don't have proof, but my gut tells me it's not easy."

"You still want to keep tracking?"

"I think, but the police department has closed the case, and I can't use the power of the police to investigate if I want to investigate, at most I will pay attention to it in the future."

Gu Yanan looked at Nan Hanfei thoughtfully, "This matter should be kept secret, why did you tell me?" ”

"The case is over, so the secrecy is gone, I can tell you." Nan Hanfei paused slightly, and continued, "And the most important reason is that I want you to help pay attention, after all, you are an expert in disease control and infectious diseases, and you know very well about highly pathogenic pathogens, and if there are any signs of bioterrorist incidents, you can find them very sensitively, and tell me in time if there is a situation." ”

"Okay, resource sharing later." The two high-fived each other.

(Author's note: Cute little cuties who like to raise birds, can add tetracycline to the feed to prevent and control the epidemic of psittacosis when feeding newly bought birds, and in case of bird death, there should be protective measures to dispose of bird carcasses, if there are fever symptoms, seek medical attention in time, and tell the doctor about the history of bird contact.) ）