Even with mild symptoms, a certain proportion of recovered patients infected with COVID-19 (severe special infectious pneumonia, new coronary pneumonia, Wuhan pneumonia) still have long-term sequelae, such as extreme fatigue, shortness of breath, chest pain or tightness, memory and concentration Problems (aka "brain fog"), changes in taste and smell, joint pain, etc. More research is needed to determine how widespread the damage caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) to organs other than the respiratory tract.
However, in retrospect, I have had several flu infections in the past. After a few days of lying down, some complications often persisted for a long time. There were several cases of continuous coughing for several months or even half a year. It’s not uncommon photo retouching service for the bronchial tubes to have irreversible effects; a few years ago, I was inexplicably hospitalized with bacterial pneumonia when I didn’t have the flu (two negative tests for quick tests), and in retrospect, I may have been infected first. An unknown respiratory virus quickly developed into a complication of pneumonia.
When I was a junior in high school, I went back to Malaysia for Chinese New Year. Unfortunately, I was bitten by mosquitoes and contracted dengue fever when I was sleeping late at home. Apart from high fever and excruciating pain, I developed red rashes on my limbs for a few days after the fever subsided. After recovery, it will take about three or four months before the physical strength returns to the state before the infection. Viruses replicate unrivaledly rapidly, and generally burden the body faster than other pathogenic microorganisms or parasites; some viruses can infect humans in very small amounts, such as norovirus, which can cause one patient to have one episode of diarrhoea The amount of virus excreted is more than enough to infect everyone in the world.