It has been almost three years since the new coronavirus has been raging around the world. It is still mutating. While the virus is evolving, our scientists have not stopped studying the virus! In addition to vaccines, we already have specific drugs for COVID-19.
Many people may think that this is a respiratory virus that mainly invades our respiratory tract. Some people even compare it with " influenza " and think that there is no need to be so vigilant, especially for the recently popular or micron . There are more mild cases and fewer severe cases, and it does no harm to young people especially. This view has been refuted by experts: Omicron is not a "large flu" because it will bring sequelae and may cause people with low immunity to develop severe illness. Therefore, we must insist on " dynamically clearing "!
However, some people in life and on the Internet say that Omicron will have more than 200 sequelae. Even if it is cured, there is no guarantee that the body will return to its original state. This is obviously another extreme and an exaggeration of the facts. Please see the detailed analysis below.
What are the common long-term symptoms of COVID-19?
The World Health Organization gave an official definition of what everyone calls "sequelae" in October 2021: Long-term symptoms of the new coronavirus (Long COVID-19) refers to patients diagnosed with new coronavirus pneumonia or suspected of being infected with the new coronavirus. Symptoms that occur within the last 3 months, persist for at least 2 months, and cannot be explained by another diagnosis. Therefore, it is more accurate to use the long-term symptoms of COVID-19 to describe the "sequelae".
In August 2021, scientists analyzed 47,910 people infected with COVID-19 aged 17-87 years old. It was found that 80% of infected people develop at least one long-term symptom. The study statistically confirmed a total of 55 long-term symptoms, the most common of which are fatigue (58%), headache (44%), attention disorder (27%), hair loss (25%), and difficulty breathing (24%). , loss of sense of smell (21%) and taste (23%), cough (19%), joint pain (19%), etc.
And as people’s research on the new coronavirus deepens, on April 1 this year, a study on the impact of the new coronavirus on the nervous system of non-human primate models found that monkeys infected with the new coronavirus, even if there is no obvious Respiratory symptoms, but damaging changes in the brain still exist. Even more cerebrovascular damage occurs. Moreover, the researchers found that the virus did not directly invade the brain. Brain damage was likely due to systemic hypoxemia caused by viral infection, which led to brain hypoxia, thus causing nerve cell damage.
Will there be more than 200 kinds of sequelae after being infected with Omicron?
This is an exaggerated rumor! On the one hand, whether Omicron infection causes sequelae depends on whether it causes severe illness. For patients with mild symptoms, the virus only stays in the respiratory tract, and there is no long-term sequelae. For severe patients, it is necessary to determine whether these symptoms are Omicron symptoms. The sequelae caused by Rong are also caused by other diseases. For example, after COVID-19 infection, the virus turns negative and the respiratory tract improves, but the body still feels tired and the sense of smell is abnormal. This situation is most likely a sequelae caused by the new coronavirus infection.
If you have diabetes , and after being infected with COVID-19, your blood sugar control is poor, or diabetic ketosis occurs, this may be a secondary disease, not a sequelae. Therefore, it is an exaggeration to say that there are more than 200 sequelae of COVID-19 infection. Some complications or secondary diseases are also counted as sequelae of COVID-19.
What we have recognized is that the mild symptoms caused by Omicron infection are far greater than the severe ones, which means that the chance of sequelae is very low. At the same time, there is relatively insufficient data on the sequelae of Omicron, and we cannot obtain the secret. The long-term effects of Cron on infected persons cannot be determined, and it cannot be concluded that Omic Cron infection will cause various sequelae.
Conclusion
In short, as the epidemic has developed to this point, we should be more clearly aware that the new coronavirus cannot be treated like influenza virus . It does cause some long-term symptoms, but there are not "more than 200" spread on the Internet. So exaggerated, we don’t need to panic, but we must actively vaccinate, protect ourselves, and treat the new coronavirus scientifically and rationally.
References:
[1]Spudich S, Nath A. Nervous system consequences of COVID-19. Science. 2022; 375(6578): 267-269. doi:10.1126/science.abm2052
[2]https://www .who.int/emergencies/diseases/novel-coronavirus-2019/media-resources/science-in-5/episode-68-covid-19-update-on-long-covid
[3]Lopez-Leon, S., Wegman-Ostrosky, T., Perelman, C. et al. More than 50 long-term effects of COVID-19: a systematic review and meta-analysis. Sci Rep 11, 16144 (2021). https://doi.org /10.1038/s41598-021-95565-8
[4]dam Hampshire, William Trender, Samuel R Chamberlain, et al. Cognitive deficits in people who have recovered from COVID-19. EClinicalMedicine. 2021 Sep;39:101044.DOI: https ://doi.org/10.1016/j.eclinm.2021.101044
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