Masks don't wear air conditioners, mosquitoes don't pass
How to prevent the new crown virus in a hot day? (Health Through Train (24th Station))
Summer is approaching, and the new coronary pneumonia epidemic is still raging.
According to Yu Xuejie, dean of Wuhan University School of Health and an infectious disease expert, at present, the northern hemisphere is in summer, and the southern hemisphere has entered the winter, but the new coronavirus has no fear of cold and heat, and the meat is taken throughout the world and continues to spread throughout the world. Some experts believe that the new coronavirus may not be completely eliminated within a few years, and people must accept the fact that it will exist for a long time. Especially with the resumption of work and production, the return of a large number of personnel and students, the increase in residents, and the risk of imported cases, the epidemic prevention and control work is still arduous and arduous.
High temperature epidemic prevention pressure
The World Health Organization and the World Meteorological Organization recently convened an expert video conference, noting that the superposition of the new crown epidemic and the adverse health effects of the heat wave this summer will bring new challenges to epidemic prevention and control and public health security, reminding countries to attach great importance to doing well The heat wave responded to the outbreak this year.
There has been some speculation that the high temperature in summer may delay the spread of the new coronavirus. However, the WHO said that the latest research did not find meteorological factors such as temperature, humidity and ultraviolet radiation, which were significantly associated with the spread of new coronavirus. Therefore, experts pointed out that even if the hot summer comes, people still have to be highly vigilant against the new coronavirus, especially in the hot and humid environment, the risk of the spread of the new coronavirus still exists, and it is necessary to carefully observe the prevention and control measures. The World Meteorological Organization also reminded that although high temperature has no obvious effect on the spread of new coronavirus, heat waves can cause other damage to human health and sanitation systems.
The "Lancet 2030 Countdown" report pointed out that people in all regions of the world are extremely vulnerable to extreme heat. High temperature, high humidity and strong radiation weather can cause a series of physiological function changes in human body temperature regulation, water and salt metabolism, circulatory system, nervous system, urinary system, etc. Once the body is unable to adapt, it will cause an abnormal increase in body temperature, resulting in heat stroke . At the same time, extreme heat can also exacerbate chronic diseases such as cardiovascular and cerebrovascular diseases, respiratory diseases and diabetes, and increase the number of deaths.
A "High Temperature Weather Epidemic Prevention Guide" edited by the World Meteorological Organization stated that all diseases and deaths related to high temperature weather can be prevented, and in the case of the new coronary pneumonia epidemic, it should be fully prepared according to the actual situation.
Should you wear a mask?
As a "protection standard" to go out, masks have gradually become accustomed to its existence. However, as the weather gets hotter and the ultraviolet light strengthens, the sultry feeling of wearing a mask and some skin problems also become more prominent. Therefore, how to do personal protection in the hot summer has become a problem for many people.
It is undeniable that wearing a mask is an effective way to stop the spread of new coronavirus. However, in a hot environment, does wearing a mask increase the risk of heat stroke?
Disease control experts pointed out that it is necessary to insist on wearing masks scientifically and develop a good habit of carrying masks with you. Regarding whether to wear masks, low-risk areas should wear masks in accordance with the "Guidelines for Wearing Masks for the Public (Revised Edition)" issued by the National Health and Safety Commission.
Wang Chen, academician of the Chinese Academy of Engineering and dean of the Chinese Academy of Medical Sciences, said that wearing masks should be judged according to different situations. In open, ventilated places with fewer people, masks may not be worn; when taking public transportation (cars, trains, planes, ships) Etc.), you should wear a mask when you go to a confined space such as a shopping mall, a vegetable market, an office building, and when you go to a hospital. You should wear a mask when you are not allowed to go out. You can always keep a mask with you so that you can wear it when you wear it. In addition, for some key groups, such as doctors, staff in confined places, chronically ill patients, the elderly, etc., masks should be worn in public places; those with respiratory symptoms should actively wear masks.
Scientific use of air conditioning
The use of air conditioners is inevitable due to heat waves. If you are too concerned about the spread of the new corona virus without using air conditioners, it will lead to health hazards such as heat stroke. However, excessive use of air conditioners will also cause the body's immunity to decline and become more susceptible to diseases.
In this regard, experts said that people using household air conditioners should do a good job of disinfecting the air conditioners. It is not appropriate to keep the indoor temperature below 26 degrees Celsius, and pay attention to opening windows for ventilation. Public places and office places that use centralized air conditioning ventilation systems should also Safely use the central air conditioning and ventilation system, and do all the measures to prevent and control the epidemic situation in public places.
When using the central air conditioner, it is required to turn off the return air and use fresh air to operate, and the air between each room is required to be independent. Try to open the fresh air to the maximum when possible. If the centralized air conditioner has a disinfection device or a purification device, it should be opened and operated during the epidemic, and the filters of the air outlet and return air should be cleaned every week.
Experts pointed out that it is necessary to maintain indoor air circulation and regulate the use of air conditioners to avoid air pollution. The air conditioner and the fresh air system are two independent systems in the room, one to adjust the temperature and one to improve the indoor air quality. The central air conditioner should be able to guarantee the release of a sufficient amount of fresh air, and ensure independent or no return air. If the central air conditioner in an indoor place cannot meet the above standards, the central air conditioner should be turned off, and an independent single air conditioner can be used. If it is not clear whether there is an infected person in the population covered by the central air conditioner, then (in the room) everyone should wear a mask until the risk is reduced.
Will mosquitoes spread the virus
As the weather gets hotter and more mosquitoes grow, many people worry that the new coronavirus will spread through mosquitoes?
Lin Minggui, executive director of the Department of Infectious Diseases at Tsinghua Changgeng Hospital in Beijing, pointed out that mosquito bites can indeed infect many diseases, but there is no evidence that the new coronavirus can be transmitted through mosquitoes, so the public does not need to be panic. But no matter how, keeping the home and surroundings hygienic and reducing the appearance of mosquitoes cannot be ignored either.
"Malaria, dengue fever, Japanese encephalitis, filariasis, etc., can be transmitted through mosquitoes." Lin Minggui said that when summer comes, we must take active actions to comprehensively prevent and control the harm of mosquitoes. We can start from our own home, such as vases and water at home Plants should be changed frequently, at least once a week, and the water in the dish or tray of the flower pot should also be kept clean. Extra attention should be paid to the places with water in dark corners, and the air-conditioning trays, toilets and kitchen floor drains should be cleaned in time. . In addition, many people feel that there are no mosquitoes during the day, so don’t be afraid. Lin Minggui said that not all mosquitoes are nocturnal animals, so mosquito protection is also necessary during the day, especially when going out to activities where there are many plants and water. It also needs to be protected.
Focus on susceptible people
People over 65 years old are susceptible to new coronavirus and heat waves. The mortality rate and risk of heat stroke of new coronavirus will increase with age. In addition, people with chronic underlying diseases such as cardiovascular disease, lung disease, kidney disease, diabetes, obesity, outdoor workers, medical workers and social service security personnel, pregnant women, etc., need to be well protected.
Public health experts suggest that the public should try to avoid going out during heat waves, outdoor work should be in a cool place and pay attention to timely replenishment of water; pay attention to keeping the living and working environment cool; ensure effective contact with susceptible people in isolation or living alone, Once the heat stroke reaction occurs, it can be rescued in time; protect the medical workers and social service personnel wearing protective devices in a cool working environment.
Yu Jingying