By Han Luheng

Recently, through reading research and clinical data regarding the  Covid-19 virus and virus infection. and carefully compared the general influenza and the 2009 H1N1 influenza data, there are the following points of understanding.

The Covid-19 virus is highly infectious, with an estimated R0 value of 3.3-3.8, which is significantly higher than R01.2-1.9 for common influenza and 1.4-1.6 for influenza A (the highest estimate for R02.2-3.1 value). This is also the root cause of the global outbreak of Covid-19.

Covid-19 infection morbidity and mortality estimates vary from 2% to 5% due to factors such as region, medical treatment, and age of the population. The average age of the deceased is over 80 years old in Toronto;  over 80 years old in Itly. German pathologist Polscher ’s anatomical conclusions on 44 deaths from viral infections were: “He did not find a death case just because of SARS-CoV-2 infection. Through autopsy, he and his team believe that the patient was the past Various diseases and SARS-CoV-2 infection have caused death together. " Statistics from the German Ministry of Health show that the vast majority of German deaths due to COVID-19 are elderly.

Compared with the age distribution of H1N1 infection deaths, “80% of people who died of cardiovascular disease caused by influenza A or influenza A are under 65 years old, and 65% of deaths are between 18 and 64 years old”, The mortality rate of Covid-19 infection among young and middle-aged people is only low but not high. According to the preliminary reading, the mortality rate of Covid-19 infection is for people under the age of 65, or similar to a serious flu.

Fever, dry cough, body aches, headaches, loss of sense of smell and taste, diarrhea, red eyes (conjunctivitis), itchy blisters on the toes, or red and swollen toes.

First of all, it is clear that at present there is no magic drug with a clear antiviral effect! From the perspective of social psychology, this magic medicine seems to have epoch-making significance. However, from the perspective of the natural laws of human development, Covid-19 is just a violation of human morality and civilized consciousness. The starting factor for promoting natural elimination has only a positive effect on the effective composition of society, so the true value of this drug is open to question.

If don't consider pathogenicity of the virus strain, viral load,  these two uncontrollable factors, still， the response of the infected individuas to the virus are not the same. The heavier  reaction (high fever is the main sign) which is from the infection, and it wouldbe the more severe development of the disease , and would be much worsen  prognosis. From the mechanism of high fever, it seems that excessive immune response to the virus is one of the reasons leading to serious illness and poor prognosis. Therefore, it should be considered in the early stages of infection, strict control of fever, timely symptomatic treatment, try to improve any physical discomfort, etc., that can be an important factor in determining the outcome of viral infection.

So far, Covid-19 has caused viral pneumonia, and the death of the lungs due to loss of respiratory function is still a recognized major cause of death. Alveolar filling, collapse, atelectasis, pulmonary embolism, and lung consolidation are common causes of lung loss. Therefore, it must be emphasized that the infected person must persist in spontaneous breathing, activity, exercise of breathing function, active coughing, etc., regardless of the pain, which may have the important meaning of saving lives.

1. Recognize Covid-19 correctly. This virus is a highly contagious epidemic that threatens the lives of elderly people. However, the life threat to young and middle-aged people is not as great as the H1N1 virus, and it does not pose a threat to social productivity loss.

2. Because of the strong contagious nature of Covid-19, it is of great significance to avoid cluster outbreaks, run and impact medical resources and medical care systems, and ensure the normal order of the society.

3. The body's immune response to the virus is low, and excessive immune response may be an important cause of serious illness. Early control of fever and relief of discomfort have important therapeutic significance.

4. Infected persons pay attention to maintaining lung function, insisting on spontaneous breathing, insisting on activity, and exercising on breathing function have a positive effect on prognosis.

5. During the pandemic, ensure nutrition, rest and sleep, and strive to face the possible situation with the best mental and physical state.

6. It must be emphasized, that because there is no effective treatment for Covid-19 infection, unless obvious breathing difficulties occur, try not to go to the hospital if possible. Isolating and resting at home, controlling fever, and insisting on breathing exercises are practical and feasible methods. If you can treat and recover at home under the guidance of a specialist, it is the first choice.

simply say:

1. For most people, it is a serious flu.

2. Eat well, sleep well, and get infected easily.

3. Once infected, be sure to control fever and fever.

4. Infected, no matter how much the trachea and throat hurt, you must actively take a deep breathing exercise and stay active. You can't lie down. This is lifesaving.

1. Regardless of gender, age, and chance of infection are similar.

2. The obese and diabetic patients are prone to become severe after infection, requiring hospitalization, and the mortality rate is significantly higher.

3. The same infection, mild female disease, severe male disease, female prognosis is better.

4. It is completely contrary to the usual idea. Smokers have more mild symptoms after infection. Compared with smokers, non-smokers become severe and require hospitalization, which is four or five times that of smokers. The specific reason is unknown.