GB/T 47729-2026Technical specification for the prevention and control of digestive tract infectious diseases at points of entry and exit (English PDF)

4.2 Information Acquisition and Verification

4.2.1 Risk discovery methods include, but are not limited to.

---Information on the risk of gastrointestinal infectious diseases released by international organizations or national and regional authoritative agencies;

---Proactive Declaration and Reporting. Inbound and outbound passengers must declare if they have an infectious disease or abnormal health condition, and the person in charge of the means of transport and... Port operators report abnormal health conditions among inbound and outbound passengers;

---Abnormal health conditions were detected at the port of entry through medical inspections, temperature checks, and verification of medical documents;

---Abnormal health conditions of inbound travelers reported by overseas health authorities;

--- Monitoring of inbound and outbound travelers for gastrointestinal infectious diseases using on-site rapid screening technology.

4.2.2 Risk information verification shall meet the following requirements.

---Compare the consistency, timeliness, and completeness of infectious disease epidemic risk information from different data sources;

---Verify the completeness of the basic information, travel information, and health status information of inbound passengers;

---Focusing on whether inbound travelers come from areas with infectious disease outbreaks, whether they have suspicious symptoms or abnormal health declaration information, and their overseas medical treatment. Diagnostic data;

---Compare and check the consistency between the information declared by inbound passengers and the data inspected on-site;

---Determination of close contacts of infectious diseases and unprotected contacts among staff.

4.3.1 Health status observation

4.3.1.1 Observation Content For gastrointestinal infectious diseases, the following symptoms and signs should be closely observed. nausea, vomiting, abdominal pain, diarrhea, hematemesis, melena, etc., with or without other symptoms. Fever, and/or signs of dehydration found on physical examination, including dry lips, poor skin turgor, and oliguria.

4.3.1.2 Requirements Staff should receive professional training and be familiar with the symptoms and signs of common gastrointestinal infectious diseases. Protective equipment and record forms should be provided on-site.

4.3.2 Body temperature detection

4.3.2.1 Equipment Requirements Non-contact infrared thermometers, infrared thermal imagers, and medical thermometers that have been calibrated and meet the relevant national standards should be used. Use body temperature detection equipment in accordance with the product instructions. Medical thermometers should be disinfected regularly and certified as qualified.

4.3.2.2 Operating Procedures For inbound and outbound passengers whose body temperature is found to be abnormal during initial screening, a second temperature check should be conducted. Each person should be measured at least twice, and the average value should be taken as the final result. Results. The temperature threshold for body temperature detection is set at 37.3°C, which can be dynamically adjusted according to the needs of infectious disease prevention and control.

4.4 Epidemiological investigation

4.4.1 Requirements The following requirements should be met when conducting epidemiological investigations.

---Use standardized epidemiological questionnaires to conduct face-to-face or telephone interviews with respondents;

---Record the respondents' answers in detail, and verify relevant information when necessary; Personnel conducting epidemiological investigations should have received relevant professional skills training and possess basic abilities to identify risks associated with abnormal health conditions. ability.

4.4.2 Survey Content The epidemiological investigation of gastrointestinal infectious diseases should include, but is not limited to.

---Personal information, chief complaint, present illness, past medical history, travel history, contact history with confirmed cases, history of exposure to infectious environments, vaccination history, allergies Medical history, medical visits, and medication use, etc.;

---Food and drinking water consumed in the 3 days prior to the onset of illness;

---Health status of other inbound passengers traveling on the same means of transport;

---The prevalence of gastrointestinal infectious diseases in the countries and regions traversed, etc. When symptoms or signs of gastrointestinal infectious diseases are found during on-site inspections, an epidemiological investigation should be conducted. (This refers to the transmission of gastrointestinal infectious diseases among inbound and outbound travelers.) The epidemiological survey form is attached as Appendix A.

4.5.1 Physical Examination

4.5.1.1 Inspection Items Quarantine physicians or qualified doctors should conduct detailed physical examinations, symptom observations, and questioning according to medical practice guidelines. Pay attention to the characteristic symptoms and signs of gastrointestinal infectious diseases, including but not limited to.

---Routine examination. Basic physical examination including pulse, respiration, and blood pressure;

---Do you have any gastrointestinal symptoms or signs such as fever, nausea, vomiting, abdominal pain, or diarrhea?

---Location of abdominal pain, manner of vomiting, frequency of diarrhea per day, and consistency and color of stool;

---Whether there are signs of dehydration, when the symptoms appeared and their duration, etc.;

---Symptoms and signs of other infectious diseases transmitted through the digestive tract.

4.5.1.2 Operational Requirements When conducting physical examinations, quarantine physicians or doctors with medical qualifications should adhere to the following requirements.

---Protective measures. Wear personal protective equipment in accordance with the corresponding protection level requirements;

---Equipment Usage. Use disposable medical devices or strictly sterilized equipment to prevent cross-infection;

---Environmental Requirements. The designated medical examination area shall meet the requirements of 7.1.3.6d) in GB 42301-2022. Disinfection should be carried out in accordance with the requirements of SN/T 4618.

4.5.1.3 Typical symptoms and signs The list of quarantinable infectious diseases is compiled and adjusted by the State Council's disease prevention and control department in conjunction with the General Administration of Customs, and promulgated after being approved by the State Council. See the list of quarantine infectious diseases transmitted through the digestive tract, and see Appendix B for typical symptoms and signs.

4.5.2 Sample Collection and Transportation

4.5.2.1 Sample Collection Before collecting samples, consent should be obtained from relevant personnel, and an informed consent form for sampling should be signed. Biological samples collected include feces, anal swabs, vomit, and blood, which can be used for rapid on-site screening and laboratory testing. Feces, anal swabs, etc. Swab sample collection should be performed in accordance with the provisions of

5.13 in WS/T 640-2018.Vomitus should be collected using a sterile tongue depressor or cotton swab. Place a small amount of vomit (3g-5g) into a sterile plastic tube or sterile plastic resealable bag, seal and label. Blood sample collection should be performed according to... The provisions of Chapter 5 of WS/T 661-2020 shall be followed, and the collection of blood samples for blood culture shall be in accordance with Section

3.6 of WS/T 503-2017. The regulations shall be followed. Drinking water sample collection should be performed in accordance with GB/T 5750.2.Food sample collection should be performed using sterile forceps or a sterile spoon, placing the sample into the sterile water. Samples should be taken from sterilized bottles or sterilized plastic sealed bags; unopened pre-packaged food can be sent directly for testing. Surface sampling of items should be conducted according to GB/T 18204.4- Implemented in Appendix A of 2025.

4.5.2.2 Sample Transportation Unless otherwise specified, samples used for nucleic acid testing should be placed in a -20°C refrigerator within 30 minutes of collection. In special circumstances where samples cannot be placed in a -20°C freezer in time, they can be stored at 4°C for a short period, but not exceeding 2 days. Repeated freezing and refreezing of samples should be avoided during the storage period. Samples used for bacterial isolation, culture, and detection should be delivered to the laboratory for testing within 24 hours of collection. Suspected Vibrio species (Vibrio cholerae, etc.) Samples infected with Vibrio parahaemolyticus or other parasitic infections should be transported at 15°C to 25°C. If the sample is determined to be a quarantinable infectious disease of the digestive tract, such as cholera, or other digestive tract infections... In the event of a cluster infection of an infectious disease, the laboratory should be contacted immediately for emergency sample delivery. Submitted samples should be individually packaged and coded, and sample transportation should be carried out in accordance with WS/T 852.Upon arrival at the laboratory, the submitted samples should... Received by designated personnel and kept on file for future reference.

4.5.3 Rapid Pathogen Screening Ports with the necessary facilities may conduct rapid on-site screening, using methods including but not limited to immunological and molecular biological methods. Testing should be conducted in accordance with national standards. Follow relevant documents such as standards, industry standards, and instructions for commercially available reagent kits during operation. Adhere to biosafety precautions during testing. Rapid screening equipment. Regular maintenance is necessary, and rapid screening reagents should be used within their expiration date. When using non-standard methods for rapid screening, the testing method should be tested first. Legal confirmation.

4.5.4 Laboratory Testing

4.5.4.1 Indications Laboratory testing should be conducted in the following situations.

---Those exhibiting typical symptoms or signs of gastrointestinal infectious diseases;

---A rapid screening result is positive, requiring laboratory confirmation;

---Those with atypical or asymptomatic symptoms but a clear history of high-risk exposure;

---Monitoring of pathogens causing gastrointestinal infectious diseases in accordance with Appendix A of GB 42301-2022;

---Based on risk identification, it is necessary to monitor inbound and outbound personnel for gastrointestinal infectious diseases.

4.5.4.2 Requirements Testing should be conducted in a laboratory with the appropriate biosafety level and should comply with the relevant provisions of GB 19489 and WS233.Testing method The law should be enforced in accordance with national standards, industry standards, or testing technical specifications issued by the national health and health authorities or the national disease prevention and control departments. Okay. If the laboratory chooses a non-standard method for testing, the testing method should be validated first.

5.1 On-site emergency assessment and judgment

5.1.1 Assessment Classification The purpose of on-site emergency assessment is to quickly assess the risks to relevant populations, environment, and means of transportation at ports of entry before a case is confirmed. Different emergency response measures will be implemented to prevent the potential spread of the epidemic. These measures are categorized into suspected quarantinable infectious diseases (high risk) and other infectious diseases (low risk). There are two types of risks. (risk) and (hazard). On-site emergency assessments should be dynamically adjusted according to the progress of on-site response. Gastrointestinal Infectious Disease On-site Emergency Risk Assessment Form See Appendix C.

5.1.2 Determination of Infected/Suspected Infected Persons The determination of an infected person/suspected infected person should conform to the definition in the "Detailed Rules for the Implementation of the Frontier Health and Quarantine Law of the People's Republic of China", including but not limited to... Limited to.

---Patients who have been medically diagnosed with a quarantine infectious disease of the digestive tract;

---Those from areas where gastrointestinal tract quarantinable infectious diseases are prevalent, or those who have recently traveled to areas where gastrointestinal tract quarantinable infectious diseases are prevalent, or those who drank untreated water or... History of consuming seafood or other unclean food and beverages, and the presence of typical symptoms and signs of a gastrointestinal quarantine infectious disease;

---Persons who have a history of close contact or common exposure with individuals infected with quarantinable gastrointestinal infectious diseases, and who may transmit such diseases;

---People who have been exposed to environments contaminated with quarantinable gastrointestinal infectious diseases and who may be able to transmit these diseases;

---Asymptomatic or with atypical symptoms but a positive result in rapid on-site screening.

5.2 Risk Assessment of Cross-border Transmission Cross-border transmission risk assessment can employ quantitative analysis, qualitative analysis, or a combination of both. Commonly used analytical methods include... These include. expert consultation method, Delphi method, risk matrix method, and analysis flowchart method. The main risk assessment indicators for gastrointestinal infectious diseases include, but are not limited to.

---Whether the infectious disease is caused by unknown factors, its source, pathogen, transmission route, and control measures are unclear;

---Severity of infectious diseases, including morbidity, mortality, complications/sequelae, and disease burden;

---The transmissibility of infectious diseases, including transmission patterns, infectious period, incubation period and asymptomatic infection period, and reproductive capacity;

---Population susceptibility, and whether there are specific high-risk groups, such as specific age groups, occupational groups, travelers, or people with compromised immune systems. Other specific risk groups; Are there any available interventions, including treatments, preventative treatments, and other control measures to reduce or eliminate the spread of the pathogen? Shi et al.

---The geographical scope of the spread of infectious diseases, the number of people affected, the number of cases, the number of deaths, and the number of people disabled;

---Social attention and public awareness of the infectious disease;

6.1.1 General Rules

6.1.1.1 Staff members should undergo protective checks before starting work.

6.1.1.2 Staff who come into contact with or may come into contact with cases and their contaminants should take protective measures to avoid skin, mucous membranes, etc. being exposed to the contaminated environment.

6.1.1.3 Select appropriate protective measures based on the type of pathogen and the different operations performed.

6.1.2 Protection Requirements

6.1.2.1 The personal protective equipment used should be within its validity period and meet the relevant technical requirements or standards.

6.1.2.2 For the following work, appropriate personal protective equipment shall be used, and the type of protective equipment shall conform to the provisions of WS/T 311-2023. Chapter 6, Appendix G. Implementation

---Impact quarantine inspections on transport vehicles that have been declared or found to have typical symptoms of gastrointestinal infectious diseases;

---Epidemiological investigation, medical examination, rapid screening, temporary isolation, and transfer of individuals exhibiting symptoms of gastrointestinal infectious diseases;

---On-site supervision of sanitation operations;

---Possibly exposed to contaminated environments or items;

---Sanitation workers should use or add personal protective equipment with waterproof, splash-proof, and slip-resistant functions for protection.

6.2 Initial handling

6.2.1 Object Before arriving at the port, inbound passengers should proactively declare if they have an infectious disease or any abnormal health condition, as well as the person in charge of the means of transport or the port of entry. If any inbound passenger reported by the port operator to have an abnormal health condition, preliminary measures should be taken.

6.2.2 Methods and Procedures

6.2.2.1 Inquire about basic information through wireless communication or other convenient communication methods, using electronic or written means, for those who have completed health declarations. Personnel retrieved the declared information and recorded the name, gender, nationality, place of departure, document number, onset time, symptoms, number of people, travel history, and contact history. Medication usage, etc.

6.2.2.2 Based on the inquiry results, provide handling suggestions to transportation personnel and port operators. This includes. guiding reporting personnel. Appropriate protective measures should be taken, such as wearing masks and gloves; individuals should be placed in a relatively independent area, separated from other people, and provided with a dedicated restroom. When handling inbound travelers, care should be taken to collect their vomit, excrement, and secretions to prevent contamination; suspected food or drinking water should be sealed off; and appropriate preventative measures should be taken. Protective measures, such as disinfection, are implemented.

6.2.2.3 Information reporting and notification shall be conducted through joint prevention and control mechanisms and channels.

6.3 On-site handling

6.3.1 Management of Infected/Suspected Infected Individuals If a person is identified as an infected or suspected infected person at the port of entry, they should be placed in an isolation and observation room for quarantine and observation, and the port authority should be notified promptly. Disease prevention and control departments of local people's governments at the prefecture or county level or above. Upon receiving notification, the disease prevention and control departments shall promptly organize the transmission of infected individuals. Individuals/suspected cases of COVID-19 will be transferred to designated medical institutions or other locations for further diagnosis, treatment, or medical observation. For those with more severe symptoms... Patients with symptoms should be immediately transferred to designated health institutions for treatment, provided that appropriate isolation and protective measures are taken.

6.3.2 Requirements for Temporary Isolation and Transfer Temporary isolation measures should meet the following requirements.

---Temporarily isolate infected/suspected infected individuals to prevent contact with other people;

---Temporary isolation facilities should meet the requirements of 7.1.3.6d) in GB 42301-2022;

---Protect infected/suspected infected individuals, such as by wearing masks and gloves. The transshipment should meet the following requirements.

---Using dedicated vehicles and under strict protective measures, infected/suspected infected individuals are safely transported;

---Transfer personnel should wear personal protective equipment in accordance with WS/T 311 requirements;

---Transfer vehicles should meet the requirements for protective ambulances in QC/T 457-2023 and be equipped with necessary protective and disinfection facilities;

---Plan routes and personnel arrangements carefully to avoid pollution along the way.

6.4 Information Reporting and Notification Information reports should meet the following requirements.

---Including basic case information, clinical manifestations, epidemiological investigation, laboratory test results, and treatment process.

---When it is determined on-site that a person has or is suspected of having a quarantinable infectious disease of the digestive tract, or a newly emerging infectious disease or a sudden outbreak of an unexplained infectious disease, they should... Reports should be submitted within 2 hours through the infectious disease reporting management information system or designated channels.

---If on-site assessment determines that the patient has or is suspected of having another infectious disease of the digestive tract, a laboratory test report or hospital diagnosis should be issued upon receipt of the diagnosis. Report through the infectious disease reporting management information system or designated channels within 24 hours of receiving the report.

6.5 Sanitation Treatment The person in charge of the means of transport and the port operator shall be responsible for any transport vehicles found to have gastrointestinal quarantinable infectious diseases and/or port site contamination. Terminal disinfection should be carried out on the area, including the contaminated environment, toilets, contacted items, vomit, and excrement; and on contaminated food and drinking water. Implement sealing, disinfection, or destruction. Disinfection methods and requirements should be carried out in accordance with GB 19193, and the selection of disinfectants should be in accordance with GB 27953. For confirmed or suspected cases undergoing medical observation on transportation vehicles, the person in charge of the transportation vehicle is responsible for implementing temporary measures to control the contaminated area. Disinfection, disinfection methods and requirements shall be carried out in accordance with GB 19193.