The emergency team had lunch in the canteen of the unit, and before the meal was finished, a colleague from the laboratory called and confirmed that the first batch of suspected influenza samples from Binhai Primary School sent by Dongcheng District CDC had been tested for multiple pathogens in the respiratory tract and confirmed that they contained adenovirus.

The result was the same as Gu Yanan's prediction, and the outbreak was confirmed to be an adenovirus infection.

——

Lianhai City, Dongcheng District, Blue Sky Swimming Pool.

Gu Yanan showed his CDC work card and wanted to enter the swimming pool for inspection.

The staff at the front desk of the swimming pool were three young and beautiful girls, who were panicked when they saw the posture of the CDC, and hurriedly found the manager in charge.

The manager in charge of the Blue Sky Natatorium is a middle-aged man in his 40s, with a tall and slender body, and he can still maintain such a figure at this age, and he looks like a person who often exercises in the fitness center.

The manager greeted Gu Yanan and his party with a smile, "Comrade of disease control, our fitness center has complete documents, and it is a regular business, how can there be a problem?" ”

Gu Yanan: "We suspect that your swimming pool is related to an adenovirus outbreak, and we are now inspecting and sampling the swimming pipes according to relevant regulations, please cooperate." ”

The manager looked embarrassed, and stopped in front of Gu Yanan and his party without the intention of giving way, "There is no problem with our swimming pool, we have just opened, all the equipment is new, and there are many people swimming in the swimming pool at this point in time, it is not very convenient to check now, can you wait until you get off work at night to check?" ”

When Zhou Lao, who was following Gu Yananshen, heard this, he became angry and asked the manager, "Your swimming pool will get off work at 9:30 at night, do you think it's appropriate to come over and check at that time?" If it drags on for a minute, there will be more risk of the epidemic spreading.

In short, today we have to go in to check the sampling, if you want to keep us at the door, that's fine, our disease control people's dress has always been very eye-catching, standing here is equivalent to posting an epidemic notice, and the guests who come and go know the situation, which will have a greater impact on you. ”

The manager thought about it for a while, and felt that what Zhou Lao said was right, and immediately changed his attitude, "Okay, I'll take you into the swimming pool to check now, I really didn't want to stop you just now, I'm worried that such a sudden intrusion will affect the guests, after all, the customer is our God, of course, in order to support the work of the government, God is nothing, come on, I will lead the way in front, what do you want to check?" ”

The manager explained with a smile while taking Gu Yanan and his party into the swimming pool on the basement floor.

The lights in the swimming pool are very bright, and under the dazzling lights, the pool water glows blue.

It is now more than two o'clock in the afternoon, this time is not the most crowded time, but at this time the pool is also crowded with people, although it is not like dumplings, but there are seventy or eighty people in the pool, most of them are children in children's swimming training classes.

Gu Yanan: "Business is good, which time of day has the most guests in the swimming pool?" ”

The manager who accompanied him immediately explained, "There are few people in the morning, but in the afternoon, there are usually people, and there are the most people around 6 o'clock in the evening." ”

"How many people are there at the most?"

"There is a children's swimming class around 6 o'clock in the evening, plus the people who come to swim in the gym, there are 170 or 80 people at the most." The manager explained a little proudly, "Our Blue Sky Natatorium is a newly rebuilt swimming pool, the facilities and equipment are brand new, and the price is favorable, so people nearby come to us, if the leaders want to come, I can give you half a discount." ”

Zhou Lao glanced at the manager, and thought, don't forget to sell yourself at this time, if there is a problem with the inspection for a while, there will be times when you cry.

Zhou Lao asked slowly, "How big is your pool?" ”

"The swimming pool area is 300 square meters, the water depth is between 1.0 ~ 1.2 meters, our swimming pool is equipped with a circulating water change system, two filter sand tanks, the usual disinfection is trichloroacetic acid disinfection tablets, the swimming pool is equipped with changing clothes, showering, forced foot soaking and other facilities."

The manager boasted about the advantages of his own swimming pool.

Before the inspection began, Zhou Lao picked out one of the problems, "According to the relevant regulations, the number of swimmers in the swimming pool is one person per 2.5~3 square meters, and your swimming pool can carry up to 120 people swimming at the same time, but you said that the maximum number of people is more than 180 people, which is obviously overloaded, does your swimming pool not control the number of swimmers?" ”

The manager was immediately speechless.

Gu Yanan assigned tasks to Zhou Lao and Gao Fei.

Zhou Lao went to inspect the hygiene of the swimming pool, mainly to check their disinfection, residual chlorine monitoring, water change records, and collect water samples.

Gao Fei went to the front desk or the swimming coach to find the list of swimming students, checked the outpatient and inpatient records of medical institutions around the swimming pool, and searched for cases by telephone survey or face-to-face interview. ”

Gao Fei promptly asked, "How to define a search case?" ”

"According to the previous data "Guidelines for the Diagnosis and Treatment of Adenovirus Infection", the following conditions are met, and cases that have recently swam in the Blue Sky Natatorium and have a fever, a body temperature higher than 38 degrees Celsius, accompanied by cough, sore throat, conjunctival hyperemia, runny nose and other symptoms are within the scope of this investigation."

Gao Fei nodded in response, as if talking to himself: "The workload of searching for cases is very large, I will first call the Dongcheng District Disease Control and Mobilization of manpower, if the method of face-to-face interviews is adopted, the people in the local disease control will be more familiar with the situation." ”

The people from the disease control began to act separately, and the manager didn't know who to follow for a while, but when he saw Gu Yanan's posture of assigning tasks, he knew that she was the leader, so he decided to follow Gu Yanan.

Gu Yanan pointed in the direction of Zhou Lao and instructed the manager, "You follow him, he wants to check the hygiene of the swimming pool, and he needs to check all kinds of records, you are the person in charge here and you should know the situation and find relevant records to give him." ”

When the manager heard that he wanted to check the disinfection records, his face was embarrassed, but he still went to the staff in charge of disinfection in the swimming pool, but the staff brought a large package of disinfection tablets and explained to Zhou Jie in a heartfelt manner, "This is the disinfection tablets used in our swimming pool, produced by regular manufacturers, and there is a batch number here, which is within the validity period, I use it every day, but there is no registration, and there is no residual chlorine monitoring record you said." ”

The swimming pool suddenly broke out in the swimming pool, and Zhou Lao suspected in his heart that the disinfection of the swimming pool was not thorough, and the lack of disinfection records and residual chlorine monitoring records was also expected by him, so listening to the staff, Zhou Lao did not have a great reaction, but continued to ask, "Is there any health monitoring for the students and coaches of the swimming training class?" ”

The staff in charge of cleaning and disinfection shook their heads, "Usually I only care about disinfecting the pool water and cleaning, where can I care about the coaches and students?" ”

The same question, Zhou Lao asked the manager again.