New pneumonia incubation period is about 14 days. Suspected cases should be reported directly online within 2 hours. On 22nd, according to the epidemic situation and research progress, the National Health Commission formulated and issued a series of documents such as "Pneumonia Prevention and Control Plan for the New Coronavirus Infection (Second Edition)" and "Pneumonia Case Monitoring Plan for the New Coronavirus Infection (Second Edition)", which have made detailed definitions and interpretations for suspected cases, confirmed cases, clustered medical records, as well as intensive contacts or suspected exposed people. 
Suspected cases confirmed cases are clearly defined
According to the plan, patients with the following three clinical manifestations and any epidemiological history are suspected cases. Clinical manifestations include: fever; pneumonia imaging characteristics; normal or reduced total leukocyte count in the early stage of the disease, or decreased lymphocyte count. Epidemiological history includes: a travel history or residence history in Wuhan within 14 days before the onset; a patient with fever and respiratory symptoms from Wuhan within 14 days before the onset; a clustered disease or epidemiologically related to confirmed cases.
A suspected case with one of the following etiological evidence is a confirmed case: real-time fluorescent RT-PCR detection of the novel coronavirus nucleic acid positive by respiratory tract specimens or blood specimens; viral gene sequencing is highly homologous to the known novel coronavirus.
. Suspected clustered cases refer to the discovery of 1 confirmed case in a small area (such as a family, a construction site, a unit, etc.) within 14 days, and 1 or more cases of fever respiratory infection were found at the same time. In the above situation, 2 or more confirmed cases were found, and there may be a possibility of interpersonal transmission caused by close contact or infection due to joint exposure between the cases, which was determined to be clustered cases.
New Pneumonia Close Contacts Clearly define
Novel Coronavirus-infected pneumonia management plan proposes that one of the following contacts with the case after the onset of the disease, but no effective protection is the close contacts of the case:
Live, study, work with the case, or other persons with close contacts, such as working close to the case or sharing the same classroom or living in the same house as the case; diagnosis, treatment, nursing, and visiting the disease; The case of medical staff, family members or other persons with similar close contact with the case, such as direct treatment and care of the case, visiting the patient or staying in the closed environment where the case is located, other patients and their accompanying staff in the same ward; people who take the same vehicle as the case and have close contact with the patient, including those who have cared for the patient on the vehicle; peers of the patient (family, colleagues, friends, etc.); other passengers and flight attendants who are likely to have close contact with the patient after investigation; people who are evaluated after investigation and assessment are found to be in line with other persons who are in close contact.
. Suspicious exposure refers to processing, sales, handling, distribution or management personnel who are exposed to wild animals, items and environments that test positive for the novel coronavirus and have not taken effective protection during exposure.
The suspected cases should be reported directly online within 2 hours
When medical institutions at all levels and types find patients that meet the definition of suspected cases and confirmed cases, they should be reported directly online within 2 hours. After receiving the report, the disease control agency should immediately investigate and verify the report information and complete the third-level confirmation and review of the report information through the Internet within 2 hours.Medical institutions that do not meet the conditions for direct online reporting should immediately report to the local county (district) level disease control agency, and send the completed infectious disease report card within 2 hours; after receiving the report, county (district) level disease control agency should immediately report online and make corrections to follow-up information.
After receiving the report, the county (district)-level disease control agency should complete the case investigation within 24 hours and register close contacts in a timely manner. Based on the current understanding of pneumonia caused by the novel coronavirus, the incubation period of the disease is about 14 days, and there are human-to-human transmission in cases. Judging from the prevention and control experience of SARS and MERS, the incubation period may be non-contagious. The document requires that close contacts or suspected exposed patients of confirmed cases be observed in . For medical observation at home or centralized isolation, close contacts who cannot be isolated and medical observation at home can be arranged for centralized isolation. The medical observation period is 14 days after the last contact with the case without effective protection or suspicious exposure.
Home medical observation subjects should live relatively independently
Home medical observation subjects should live relatively independently, minimizing contact with co-residents as much as possible. In principle, you are not allowed to go out. If you have to go out, you can only get approved by the medical observation management staff and wear disposable surgical masks to avoid going to crowded places. During medical observation, those who experience respiratory infection symptoms such as fever, cough, , etc., such as acute respiratory infection symptoms such as fever, cough, shortness of breath, will immediately report to the local health department and send it to designated medical institutions for diagnosis and treatment as required, collect specimens for laboratory testing and screening.
For suspected exposed persons, the county-level health administrative department, in conjunction with relevant departments, organizes health notifications, and instructs them to seek medical treatment in a timely manner when they have symptoms of respiratory infection such as fever and cough, and actively inform them of their occupation or animal contact.
Source: Comprehensive Xinhua Viewpoint, Beijing Evening News
Process Editor: TF017
