Without the person that the symptom is affected
As new coronal pneumonic epidemic situation develops in global abidance, more and more " the person that affect without the symptom " enter masses line of sight and life, make the central point that everybody pays close attention to. The new coronal that happens this in Heibei is pneumonic in epidemic situation, also discovered the person that affect without the symptom in great quantities. So what is the person that affect without the symptom? Does the person that affect without the symptom have infectivity? How should we be on guard to travel without what may the person that is the symptom affected bring?
Ask
What is the person that affect without the symptom?
Answer
National Wei Jian appoint release " virus of new-style coronal shape is pneumonic prevent dominate program " (the 7th edition) point out clearly: The person that affect without the symptom is to show the specimen such as respiratory tract is new-style cause of disease of coronal shape virus learns to detect show masculine gender, without relevant and clinical expression, if calorific, dry cough, pharynx is painful,wait but ego is felt may the symptom that clinical identifying and body are asked for, and CT is video learn not to have new coronal pneumonic and video the person that learn a feature.
The person that affect without the symptom has two kinds of state: It is the segregation medicine observation via 14 days, all do not have a He Ke ego to feel may the symptom that clinical identifying and body are asked for; 2 it is to be in preclinical " affect without the symptom " condition. That is to say, the person that affect without the symptom may not have a symptom from beginning to end, it is the person that a virus is carried; Likely also as time elapse, appear relevant and clinical symptom, make diagnose case.
Ask
Does the person that affect without the symptom have infectivity?
Answer
Be based on current epidemiology investigation and research result, new coronal virus is in inside human body preclinical for 1-14 day, it is 3-7 day more; Day of the 1-2 before coming on and come on earlier infectivity is opposite stronger. Visible, the person that affect without the symptom has infectivity, be in especially " preclinical " the person that affect without the symptom, the 1-2 day before come on and come on earlier infectivity is opposite stronger. The person that the part is affected without the symptom only sampling detects for positive of nucleic acid of virus of new-style coronal shape, or antibody of IgM of particularity of virus of new-style coronal shape or IgG antibody positive, do not have relevant and clinical symptom from beginning to end, also do not come on, compare with photograph of serious illness patient, the virus transmission capacity of its eduction is a lot of weaker.
Ask
How be discovered without the person that is the symptom affected?
Answer
The person that affect without the symptom basically passes the following 4 ways are discovered:
(1) new coronal is pneumonic the person be contacted closely of case of illness, in medicine observation period discovers such a few people;
(2) is collecting sexual epidemic situation in investigation, detect actively in what begin in the process, discovery does not have the person that the symptom is affected partly;
(3) is in new coronal is pneumonic the contagion of case of illness the source tracks a course in, to revealing the probability when the crowd undertakes detecting actively discovery does not have the person that the symptom is affected;
(4) is in new to having coronal is pneumonic the case of illness, journey that transmits an area continuously history and live history when personnel detects actively, may discover the person that affect without the symptom.
Ask
How be on guard to be infected by the person that affect without the symptom?
Answer
Because do not have the person that the symptom is affected not to have any apparent symptoms and body to ask for, go actively rarely medical establishment sees a doctor, have in the crowd hide a gender, be discovered hard, existing to spread a risk.
New coronal is pneumonic during epidemic situation is popular, possible presence does not have the person that the symptom is affected in kin, neighbour, acquaintance, friend, colleague. Accordingly, want to be on guard to be infected by the person that affect without the symptom, to common public, the basiccest method remains:
(1) does good oneself to defend seriously. Hold to Dai Kou to wash his hands cover, frequently, constant ventilated, a few private article that public article and individual often use (the handle that be like the door, phone, mobile phone) fixed cleanness is disinfected.
(2) is little go out, do not gather. Area of jaws of the Gao Feng in going, not with the Gao Feng in coming from jaws area, be engaged in the personnel with the healthy unidentified state such as job of Gao Wei profession be being contacted closely; Do not meet not to dine together, do not go close not to visit friend, do not gather together not to gather, maintain socialization of 1 meter of above to be apart from with other.
(3) exquisite civilization is formal. Cough sneeze covers the mouth is nose. Advocate minute of eat to make, use fair chopsticks fair spoon.
(4) strengthens health to monitor. Pay close attention to oneself and family health condition closely, once appear doubtful symptom, as soon as possible before go to around normal hospital seeing a doctor examination seeing a doctor, strive for diagnose early discovery, early, early segregation, early treatment.
(Vivid means of exceedingly of 5) nurturance fine. Work and rest of reasonable and prandial, law, science moves, water amply, enhance body immunity power ceaselessly. Conditional person, active and vaccinal flu and new coronal are vaccinal.
About occupying the home
Pneumonic diagnose case of illness still is in the new coronal that Heibei saves growth, accuse to strengthen epidemic situation to prevent, shijiazhuang, Xingtai and Langfang executed macrocosm to close management, many dwellers already occupied the home many days. During managing about closing, what thing cannot do what thing, many popular feeling put doubt.
Ask
Does village organization sing can you transmit virus?
Answer
Somebody asks, close during management, whether does village dweller collective open the behavior that the window sings to you can transmit virus?
Think at present, via respiratory tract flying foam and intimate contact travel is the transmission avenue with new pneumonic and main coronal. The article that contacts virus pollution also can cause infection. Expose Yu Gaonong for long in the environment that closes relatively to spend gas collosol circumstance to fall, existence virus classics enrages the likelihood that sol transmits.
Lecture of division of respiratory system of university of Hong Kong Chinese teachs Xu Shuchang to ever expressed, below normal circumstance, the 1 safety that coming still is transmission of respiratory tract flying foam 1.8 meters is apart from interval. Chinese disease accuses central contagion to be in researcher Feng to record call together to ever also had said: Distance of flying foam transmission is very short, it is commonly inside 1-2 rice, virus won't float for a long time in air.
The dweller that the organization sings lives inside the building mostly, the window when singing is opened wide, the distance already all exceeded two meters between building and building. Chinese disease accuses Feng Zijian of central vice director to ever expressed: Village organization sings to whether can be infected should see a space, the window is opened to sing between Lou Yu sing without the problem.
So, below the premise that ensures safety is apart from, the dweller is to be able to be in the home to sing those who sing, this also can yet be regarded as is improved one kind the mood, slow the mood, good method that reduces pressure.
Ask
During epidemic situation whether open a window ventilated?
Answer
The flying foam that has pathogen can produce infection, the limits that Dan Feimei transmits is finite, new coronal is below pneumonic and most circumstance happen below the circumstance that contacts with patient close quarters infect, if maintain certain osculatory distance, can reduce infectious risk.
In addition, new coronal virus broke away from host, what had compared in airiness sex is outdoors, won't survive too long, can lose active very quickly. Because there won't be virus of new-style coronal shape commonly in this air. Although outdoors air contains virus, because air is of constant flow, density also is met very special low, enter indoor possibility very small, the possibility that catchs indoor person is less.
Opening the purpose with ventilated window is to strengthen airiness of room inside and outside, if the person stays in a relatively airtight space all the time, the waste gas of person expiration can accumulate more more indoors, the oxygen in air is met drop off, right healthy adverse instead, and it is ventilated and OK to open a window maintain indoor air fresh, fresh air is beneficial to everybody of immune force rise, reduce the risk that virus contracts thereby.
Below the condition that suggests the sunny weather, temperature outdoor is appropriate many window is ventilated, increase indoor airiness, everyday 2-3 second, every time 20-30 minute, open the attention when the window is ventilated to prevent cold heat preservation, prevent cold of catch cold catch cold.
Ask
Close during management, can be new wind system used?
Answer
The main effect of system of open new wind is to strengthen airy of room inside and outside current. In average household if do not have contagion person, can use new wind system. But if have the member that need resides an isolator, keep apart a room to answer with nature ventilated give priority to, disinfection is complementary. Blame of the air conditioning inside the room needs otherwise is used, if use,need to be disinfected ahead of schedule, ensure each room air conditioning is ventilated and independent, do not circulate. Processing must be disinfected before air conditioning is used.
During epidemic situation is popular, concentration is empty those who move ventilated system use can carry out by the following principle: Personnel is concentrated the place should suspend use concentration sky moving ventilated system; The air conditioning in be not public need to continue to use part is ventilated of the system, should time ventilated to centering air conditioning system undertakes cleaning, disinfection; Other the air conditioning in needing to continue to use part is ventilated spatial appropriate of the system is brand-new wind moves. In everyday before equipment of cold heat source is enabled or close after stopping, should make new fan and platoon fan much move 1 times or 2, have take a breath. Time ventilated to centering air conditioning system undertakes cleaning, disinfection or component change.
