"Oh, it's the alternating season of spring and summer, and the possibility of bacterial food poisoning is also very high, for example, Salmonella, Vibrio parahaemolyticus, Shigella, Campylobacter jejuni and other common bacterial food poisoning caused by clinical symptoms are very similar, how to distinguish it from these marine toxin food poisoning?" Xiao Chu seized the opportunity to ask for experience from Zhou Lao, an old-timer.

Zhou Lao has been engaged in disease control work for decades, from the early epidemic prevention station to the establishment of the new CDC, and then experienced several disease control reforms, along the way to summarize and explore a set of experience in dealing with food poisoning incidents, at this time is not stingy, and Xiao Chu said carefully, "In the past, when I was in the old epidemic prevention station, the laboratory testing technology could not keep up, and it took a long time to determine a certain pathogen.

Later, the experimental technology became more and more advanced, and then there was a food poisoning incident, the patient's specimens and suspicious food were sent to the laboratory, and at the same time, on-site investigation was carried out, and a general range was determined for laboratory testing according to the type of food the patient ate, so that the cause could be quickly and targeted. ”

Xiao Chu understood what Zhou Lao meant, "The on-site flow investigation and laboratory testing are carried out at the same time, and the cause can be quickly determined, just like the red tide has occurred now, if there is another food poisoning incident, we will recommend that the laboratory add several marine toxin tests in addition to the conventional bacterial testing." ”

Zhou Lao: "Yes, a long time ago, when people were not sure about a certain pathogen, they could determine the transmission route and mode of transmission of a certain infectious disease just by relying on on-site investigation, and control the epidemic of infectious diseases by determining the source of infection and cutting off the transmission route. Later, the experimental technology was highly developed, and specific pathogens could be detected through experimental means, which in turn could guide the on-site flow investigation, in short, it was a mutually reinforcing process. ”

Gu Yanan: "Zhou Lao is right, the previous experience of flow investigation is also suitable for the present, especially when a new pathogen appears, when the specific characteristics of the new pathogen cannot be determined, the transmission route and source of infection of the disease can be found through on-site flow investigation, and the effect of controlling infectious diseases can also be achieved." ”

Several people in the emergency office talked about the occurrence of red tide, the impact of red tide on people's lives and disease control work, and then talked about the work mode before disease control and the change of work mode, and everyone participated in the discussion.

The sudden ringing of the office phone on the desk interrupted the discussion.

Connected to the phone, it was from Dongcheng District Disease Control.

"Hey, CDC? There has been a food poisoning outbreak in our jurisdiction, one patient has died, and seven other patients have been hospitalized. ”

"I'm Gu Yanan, has your district CDC done on-site investigation? How is the patient's condition followed up? Have patient and food samples been taken? ”

"Our district CDC received the epidemic call last night, the patient was treated in Dongcheng District Hospital at first, and then his symptoms worsened, and he was transferred to the First People's Hospital, and the patient's samples have been collected, according to the information provided by the mild symptomatic patients, we went to check the food stall where they ate last night, and sampled all the food in the partner, and the samples are currently being sent to the Municipal Disease Control Laboratory."

"What are the patient's symptoms?"

"The symptoms varied from one to the other, but they all had symptoms of vomiting, diarrhea, numbness of the lips, numbness of the legs and feet, and bluish face, and the patients reported that it took only half an hour from the time they started eating dinner at that food stall to the onset of the disease.

At the district hospital, the doctor administered infusion therapy according to ordinary bacterial food poisoning, but the effect was not good, and one of the seriously ill patients died.

The other 7 patients were transferred to the First People's Hospital and began gastric lavage, catharsis, oxygen inhalation, and diuresis, and their symptoms were relieved.

Through the on-site investigation of the food stalls, the 8 poisoned patients had eaten a large amount of seafood that night, and combined with their symptoms, the initial suspicion was that the food poisoning was caused by marine toxins. ”

What is the matter, just now everyone was still discussing the effects of red tides, and now there is an outbreak of food poisoning suspected to be caused by marine toxins.

Gu Yanan: "Okay, send the patient specimens and food specimens to the Municipal Disease Control Laboratory, and I will give feedback after the results are available." Are there any photos of the time when you took samples in the field? ”

"Oh, there is a video, the last time I received a request from the city, we had to leave evidence when sampling on the spot, so we have someone to record the video every time we go to sample."

"Okay, the video will be sent to the mailbox of the Municipal Emergency Office."

After hanging up the phone, Gu Yanan opened his email and found the sampling video sent by Dongcheng District.

Several members of the emergency response team gathered around.

The video was played from the beginning, at night, and the address showed that it was a food stall on Binhai Commercial Street in Dongcheng District.

"Huh? Isn't that where we passed by last night? Wang Xiaoxiao exclaimed.

Last night, Lu Li and Wang Xiaoxiao went to see the fluorescent sea, Wang Xiaoxiao's feet were allergic, Lu Li carried her to find a clinic in the commercial street across the beach, and passed by the food stall.

At that time, there was a crowd of people outside the food stalls, and more than a dozen tables were all full.

Lu Li: "Yes, it's the one we passed by last night, this food poisoning outbreak can't be the same group of people we met in the clinic last night, right?" ”

The video in the computer continued to play, and there were conversations between the on-site sampling personnel of the district disease control and the restaurant owner and waiter, as well as the food that was confirmed to have been eaten by the guests at the table where food poisoning occurred, and after comparing them with the food list in the hospital, the dishes that had not been destroyed at the scene and the dishes in the back kitchen were collected.

"Except for a few servings of vegetables, the rest of the dishes are seafood, if you only look at these recipes, it is easy to suspect that it is Vibrio parahaemolyticus infection, and the district hospital where you first received it is estimated to treat it as an ordinary bacterial food poisoning." Goofy watched the video and offered his opinion.

Zhou Lao: "If it is paralysis, the onset time will generally appear within 2~3 hours after eating, but this time the patient will have symptoms half an hour after starting to eat, and the cause of poisoning should be chemical." ”

Gao Fei: "At present, the judgment of the doctors in the First People's Hospital and the district disease control should be correct, it is likely to be food poisoning caused by marine toxins, and the specific marine toxin depends on the detection of our city's disease control and physical and chemical team." ”

After watching the video, Xiao Chu asked Gu Yanan, "Sister Yanan, do you need our city's emergency team for disease control to go to the scene for guidance?" ”

"At present, it is not necessary, and the disease control in a food poisoning area of this scale can deal with it by itself."

Gu Yanan called Section Chief Li of the laboratory, "Li Ke, Dongcheng District CDC will send a batch of food poisoning specimens over in a while, among which there is a fried sea screw in the food specimen, focus on checking, the scope of detection is various marine toxins." ”

"Okay, I'll ask the people in the physics and chemistry group to prepare in advance."