At the end of 2019, Wuhan reported the first unprecedented case of viral pneumonia, and later named the novel coronavirus pneumonia, and the number of confirmed cases continued to increase.
Now the COVID-19 pandemic has been going on for nearly three years. During this period, it has been repeated and has never been eliminated. The global epidemic continues to spread, the economies of various countries are severely recession, and people's lives have been greatly affected.
Faced with the ever-changing new coronavirus, when the epidemic will end has become a topic of concern.
1
new coronavirus transmission route
.Drop transmission
The so-called droplet transmission refers to the droplets sprayed by the patient will carry the new coronavirus when he sneezes or coughs. In this case, if a healthy person around inhales droplets, he is easily infected, which is also the most common transmission route.
. Contact transmission
If there is a virus on the body contact object of a patient with novel coronavirus pneumonia, other people contact the surface of this item and then contact the skin and mucous membranes of their mouth, nose and other parts, it can cause the virus to spread again, and then the novel coronavirus infection occurs, causing contact transmission.
. Other transmissions
such as aerosol transmission. This situation is relatively rare. It usually occurs in a closed environment. The virus will exist in air particles in a closed environment, and then spread to a distance through aerosols. After being inhaled into the respiratory tract by the body, it can cause the virus to spread. How long will it take for a positive person to be infected if it is in close contact with a positive person?
is usually contagious for two days after close contact. It is contagious about 48 hours after close contact, that is, about two days. However, because everyone has different physical constitutions, the time of infectiousness cannot be generalized, and there are also differences in the time of symptoms.
Most of the viruses begin to reproduce in large quantities in the body about 2 days after close contact, and generally develop symptoms such as dizziness, weakness in the limbs, fever, and cough in 3-7 days. If the constitution is slightly weak, the virus will replicate relatively quickly in the body and may be contagious in a short period of time. If the constitution is slightly stronger, it may be contagious two days after close contact.
If the close contact has a high resistance and wears a mask throughout the whole process, it will generally not cause the virus to be positive, so after a long-term contact with the close contact, it will not cause the virus to be transmitted.
During the epidemic prevention and control period, if you come into contact with close contacts, you need to isolate in time to avoid causing the disease transmission. Generally, you can understand your own condition after 14 days of isolation. You need to do nucleic acid tests every day. Nucleic acid tests are the only way to determine whether you are infected with the virus. You can choose to do pharyngeal swab and nasal test strips.
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The new crown epidemic has been going on for nearly three years. Will it improve in the second half of the year? Academician Zhong Nanshan gave a new direction
In fact, plagues have indeed occupied a large proportion in the long historical development of mankind for thousands of years, and many plagues lasted for about three years. Now, the COVID-19 epidemic has lasted for nearly three years, and many people have questions: Will the COVID-19 epidemic improve in the second half of this year?
Medical expert Academician Zhong Nanshan proposed that according to the current development trend of the epidemic, the new crown epidemic may exist for a long time, but my country's medical technology can effectively control the spread of the virus, avoid large-scale contagion, and gradually clear the zero and relax control in the future.
Regarding the end time of the new crown epidemic, Huang Jianping, an academician of the Chinese Academy of Sciences, brought his team to make the latest predictions. It said that the pandemic will end around November 2023.
But only when there is no new mutation in Omickron, if the virus mutation is caused due to individual reasons, the treatment difficulty will increase, and the result will change.
No matter what statement and prediction, we always firmly believe that in the near future, the new coronavirus will eventually be eliminated by humans and restore the peaceful life of the past.
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Prevent the new coronavirus and improve immunity is the key
Professor Zhang Wenhong made a clear statement regarding the new coronavirus epidemic:
There is no magic medicine in the world that can quickly remove the virus. For patients with mild symptoms, it does not require particularly many and complex treatments, and can finally recover. This proves that human immunity is very important. Most viral diseases are eliminated through immunity.
From the current trend, the new coronavirus is constantly mutating and its contagiousness is stronger. We ordinary people need to actively cooperate with epidemic prevention and work hard to improve our immunity. It is recommended that everyone do these things well in daily life to help us stay away from the threat of the virus and enhance our physical fitness.
. Drink more water
The first task to improve immunity is to drink more boiled water, which can keep the mucous membranes in the nasal cavity and mouth moist. In addition, drinking more water can make people feel fresh and full of vitality, especially drinking a glass of water after getting up in the morning, which is better.
Studies have shown that boiled water helps promote the body's metabolism and is a good catalyst. Water is easily absorbed by the body, enhancing the activity of lactate dehydrogenase in various organs of the body, thereby achieving the effect of enhancing the body's immunity and disease resistance.
. Healthy diet
If you want to improve your immunity, it is very important to have a reasonable and healthy diet. Improper diet is the culprit of the disease. Some people always overeat and like to eat various junk foods. Over time, gastrointestinal function may decrease significantly. When gastrointestinal function declines, the nutrients needed by the body cannot be provided in time, which may affect health.
Therefore, if you want to maintain a healthy state and improve your immune function, you must start from your diet and eat more foods that are beneficial to the human health. All kinds of nutrients can be supplemented so that your immune function can be performed normally and achieve the anti-disease and anti-aging effect.
. Learn to relax
Tension will promote the secretion of adrenal corticosteroids, leading to imbalance in immune feedback. Some people are often easily knocked down by colds before exams and before applying for a job, because the anxiety induced by tension limits the role of immune cells.
The immune system is also restricted by emotions and feelings, so we must maintain an optimistic mental state. People with negative, emotional, nervous and allergic conditions often have a relatively fragile immune system and are prone to diseases, while cheerful and lively personality and happy emotions will improve human immunity.
. Regular work and rest
Maintain sufficient sleep time, which can give the brain a better rest, is conducive to brain cells to store energy, and can also promote the secretion of hormones such as growth hormones, so it can improve human immunity to a certain extent.
But don’t sleep too much. Sleeping too long will lead to reduced body movement time, poor physical strength, and prone to problems such as obesity. It will also slow down gastrointestinal peristalsis, which will cause food to be unable to be effectively digested and absorbed, making the body lack nutrition, so you can sleep for 7 to 8 hours a day.
