At present, the resumption of work and production is on the way. In recent days, many COVID-19 positive patients have gradually recovered after home treatment.
But "Yang Guo" people are really worried: home quilt sheets will hide the virus again? "Yang Too" how to kill the home is "Yang Kang"? When can I return to work without causing a new infection?
Don't panic! Please accept this "Yangkang" guide!
Many of them have recovered after staying at home for about seven days. Are there any traces of the virus on clothing and household items during the infection? Does it cause a secondary infection?
Lu Lianhe, director of the hospital's sensory management department at Beijing Ditan Hospital, said there was little risk of Yang Guo being infected by household items after recovering at home. This is related to the characteristics of the virus:
1. The novel coronavirus spreads through respiratory tract, and contact with surfaces is unlikely to spread, so it is not the main transmission route. The novel coronavirus has a limited survival time on smooth surfaces, such as metal surfaces and hard tabletop surfaces.
2. The virus needs to survive in the body. Studies show that viruses leave the human body, at room temperature, dry, hard surface, two to three hours will lose activity, and is no longer infectious.
3. The novel coronavirus is afraid of heat and cold. In a conventional lab, it's deactivated after 30 minutes at 56℃. The bath water must be deactivated for about 50℃ for 30 minutes. The higher the temperature, the more effective it is. In theory, only 1 minute at 90℃ can kill the virus.
4. Sputum is a hotbed for viruses. Because sputum can maintain a certain temperature and humidity, the virus in it, especially in the winter low temperature, if there is still water environment, then it is possible to survive for more than ten days.
Many "Yang Guo" after recovery hope to carry out a "terminal disinfection" from inside to outside at home. Lu Lianhe, director of the hospital's sensory management department, said the so-called "terminal disinfection" at the hospital was due to the large number of virus cross-infections and the need to avoid infections among immunocompromised patients who come to the hospital. In fact, only special areas need to be disinfected, such as toilets, refrigerators. The family can do a good job of daily cleaning, there is no need for terminal disinfection.
"Yang Guo" can be cleaned according to the following materials:
1. Key part one: refrigerator -- alcohol wipes or chlorine-containing disinfectant
The most likely place in a home to have the virus is the refrigerator. The cold room 4-5℃, the cold room -18℃, are very suitable for virus survival. In the extreme, if a positive person sneezes or coughs while opening the refrigerator, the refrigerator could become infected with the virus. Experts suggest, "Yang" after recovery, can unplug the refrigerator power, with alcohol containing wet wipes to wipe the refrigerator again. Food in the refrigerator without airtight packaging can be heated before consumption to eliminate the virus.
2. Key part two: toilet -- alcohol wipes or chlorine-containing disinfectant
Household washbasins and toilets may contain respiratory secretions during the infected person's illness. Alcohol wipes or chlorine-containing disinfectant can be used to wipe them after recovery.
3, desktop, cabinet and other hard surface - alcohol wipes or chlorine disinfectant wipe
Virus in the hard surface survival time is limited, with alcohol or chlorine-containing disinfectant wipe. At the same time pay attention to open the window ventilation. Special reminder: do not use alcohol spray, alcohol in the air to see fire easily deflagging.
4, clothing, sheets, bedding and other cotton items - drying, heating virus can lose activity.
Cotton items can be washed normally in the washing machine, washing and decontamination at the same time can remove pathogens. Just take the quilt out in the sun. If there is a heating sterilizing function of the washing machine, the virus will be deactivated in theory at 56℃ for 30 minutes.
5, home disinfection should be based on cleaning, disinfection as a supplement.
Physical disinfection methods such as sun exposure and heat are preferred at home. To do a good job of ventilation, it is recommended to ventilate 2-3 times a day for no less than 30 minutes each time. Disinfection at home should be based on cleaning, chemical disinfection as a supplement.
According to the Diagnosis and Treatment Protocol for Novel Coronavirus Pneumonia (ninth edition), the criteria for recovery and discharge of patients are as follows: first, the body temperature should return to normal for more than 3 days; Second, respiratory symptoms improved significantly; Third, acute exudative lesions were significantly improved by pulmonary imaging. Fourth, two consecutive nucleic acid tests were negative, and Ct values were all ≥35.
Nowadays, many asymptomatic infected and mild patients choose home rehabilitation, how long can return to work after fever will not cause virus infection? What should "Yangkang" notice when contacting people? Li Dong, chief physician of the General Department of Infection of Beijing You 'an Hospital and medical expert of Xiaotangshan Makeshift Hospital, said:
Reference 1:7 days after the onset of the disease, nucleic acid gradually turned negative and infectivity was low.
Three days after onset, the body temperature of the young adult gradually returned to normal, but the cough and sore throat were still serious. Clinically, 7 days after the onset of the disease, nucleic acid of most mild patients begins to turn negative, and the amount of virus is very low, so they are basically not infectious.
Reference 2: Rest for another 3 days after the body temperature returns to normal.
In general, after 3 days of normal body temperature, the symptoms of cough and nasal congestion, runny nose and sore throat may be significantly relieved. When you feel a sore throat and cough no longer affect sleep, it means that the body has basically recovered, suitable for returning to work!
Tips for returning to work: It is recommended that "Yangkang" adhere to wearing a mask and do not lower the prevention and control standards.
The current winter respiratory infection season is high. There are other infectious diseases besides COVID-19. It is strongly recommended that respiratory protection should be carried out after COVID-19 recovery and that prevention and control standards should not be lowered. After returning to work, insist on wearing a mask in crowded closed public places, pay attention to hand hygiene, coughing, sneezing and other etiquette. Don't eat face to face in the canteen.
Expectation of returning to work: The possibility of "Double ninth Festival" of "Yangkang" in half a year is very low, and the body will maintain a high antibody level.
Young people are unlikely to be reinfected with the virus within half a year. Especially in 3~6 months after infection, the antibodies in the body are maintained at a very high level, and have a cross protection against small amplitude of virus mutation. Li had suggested that a second dose of the vaccine to boost immunity after six months would provide a higher level of protection.
