Nearly 4 months after the first case of COVID-19 being recorded in China in December 2019, there are still many unknowns about this virus.
SARS-CoV-2 is the virus that caused the COVID-19 pandemic, for nearly four months COVID-19 has changed the world in a sudden and unprecedented way. As of April 18, 2,240,191 were tested positive for the virus and 153,822 died.
This virus is also special in that we do not know how it works. There are still big gaps between the way we think about viruses and what we see from patients.
10 secrets about COVID-19 that humanity hasn’t deciphered
1. Why do young, healthy people die from COVID-19?
One of the most interesting information about the pandemic is that the death rate in the elderly is always greater than the young, healthy people. In reality, however, many young people in the world have died from the virus. This is a detail that so far scientists have not found the cause.
Based on our current understanding of the pandemic, people with good health and underage age do not develop severe COVID-19 symptoms. However, there may still be a large question mark about how viruses affect groups of people in different ways, the answer being very important in preventing the possibility of young people dying so much because COVID-19 in the future.
2. Do humans have been infected with new strains of corona from animals?
Although there is still a great deal of ambiguity regarding the COVID-19 pandemic, there is a high possibility that humans will be infected with new strains of corona virus from animals. Until now there is much debate about the exact origin of COVID-19: pangolins, bats and even poultry are potential suspects.
Besides, scientists have not yet explained how the mutant virus in humans is transmitting back to animals. There has been a case of a tiger at Bronx Zoo, USA was diagnosed with new corona virus infection. Although no one knows for sure the mode of transmission, the prediction suggests that the animal may have been infected from one of the zoo staff infected with COVID-19 without symptoms.
But if that were the case, then SARS-CoV-2 would have to have been transmitted to other animals. But the truth is that no other animal in the zoo has any symptoms. As such, SARS-CoV-2 may affect tigers for a number of reasons.
3. What is the biological structure of COVID-19?
The SARS-CoV-2 strain has proven to be much more difficult to understand than we imagined. Scientists are still questioning the basic biological structure of the virus.
We know that it is shaped like a ball with thorns to break into living cells. But so far, why SARS-CoV-2 spread so quickly, what makes them so dangerous to humans and how it affects humans remains a mystery.
4. What is its transformation in the human body?
Virus biology can help us better understand its effects, though, there is still a question about how SARS-CoV-2 strains infect humans.
The SARS-CoV-2 virus appears to have known how to infect and eradicate it in the first place because it hasn’t changed significantly since the outbreak. However, that does not mean that it is not mutated, although no mutations have the upper hand over the original. The current SARS-CoV-2 strain does not need to change itself to infect more hosts because it was able to do so without much effort.
5. Why is the patient who was tested negative tested positive after that?
While struggling with tens of thousands of new COVID-19 infections around the world every day, doctors are currently facing an inexplicable new problem: Why patients have had a negative test count then give a positive result? This has created doubts about the very methods and tools we use to examine patients.
In fact, the virus may not work for a while before any symptoms appear, so the World Health Organization has asked all patients to recover from a negative test for the virus twice, with a time interval of at least 24 hours between tests.
According to some experts, the virus may have the ability to deactivate and also reactivate itself inside its host (human itself). However, it is not excluded the possibility that a patient will be re-infected with infection from other sources or for various reasons.
6. Why do some COVID-19-infected patients do not have any symptoms?
Looking back at past pandemics, the danger of a new strain of corona does not come from a high rate of spread or death because humanity has dealt with a lot of more dangerous diseases such as plague and flu in the past. Spain
The strange thing about the COVID-19 epidemic is that: Many patients have only mild symptoms or even no symptoms, so SARS Cov-2 will reach more people than any other disease.
However, so far scientists still do not know how many COVID-19 infections have such symptoms. Cases of mild or asymptomatic patients are only tested positive for the virus when tested.
7. Why are children coping with SARS Cov-2 so well?
Older people with higher COVID-19 mortality rates are explained as having a weak immunity. However, why does the COVID-19 epidemic have little effect on children?
In fact, children are often at higher risk for respiratory infections, such as the common flu … In addition, some healthy people have better protection against viruses than children die. . These have shown that why children infected with COVID-19 are usually mild, easily recoverable is still a mystery.
8. How does the patient recover?
So far, what we still don’t fully understand is how a COVID-19-infected patient can recover. Usually for other diseases, the patient recovers by developing antibodies. These antibodies not only help fight that disease, but also protect their bodies from future attacks by a similar strain. Immunity may not be permanent, as is the case with the influenza virus, although the body still stores some signs of fighting the disease. But that is not true for the large number of COVID-19 patients who have recovered, and researchers are still finding ways to understand why.
In a study conducted in China, most recovery cases developed antibodies specifically for the SARS Cov-2 strain. However, 30% of patients showed no signs of those antibodies or any other antibodies, so it is still unclear how their bodies recovered.
9. Why are there invisible ways of infection?
The current concern is: We still see quite a lot of patients from all over the world who don’t have any specific routes of infection.
For example, a toddler in Gujarat (India) became infected and died although no other cases have been reported throughout that area. A man in California became the first American infected with the virus without coming into contact with any potential host …
10. How do SARS-CoV-2 spread?
More and more research shows that we know very little about SARS-CoV-2 and we will have to constantly develop preventive techniques. The biggest mystery of the COVID-19 pandemic is that we don’t know for sure how it spreads, all we say about it is just “predicting”.
Previously, it was believed that SARS Cov-2 could only be spread through a patient’s droplet, but some new studies suggest the virus can survive in the air longer than we think. To this day, it is still not clear about all the ways that SARS-CoV-2 can spread.