The Role of Genetics
It is believed that genetics play a role in determining who will and who won't get COVID-19. Studies have shown that people with a certain gene, known as ACE2, are more likely to get infected. ACE2 is a gene that codes for a receptor on the surface of cells that the virus uses to enter the body. People with certain genetic variations of this gene may be more susceptible to the virus.
Immune System Function
Another factor that might explain why some people don’t get COVID-19 is their immune system. People with a strong immune system are better able to fight off infections. This is because their immune system is better able to recognize and respond to the virus. People with weakened immune systems, such as those with HIV or other autoimmune conditions, may be more susceptible to the virus.
Exposure to the Virus
The amount of exposure to the virus is another factor in determining if someone will get COVID-19. People who have been exposed to the virus, either through travel or contact with an infected person, are more likely to get the virus. Even if someone has been exposed to the virus, however, it doesn’t necessarily mean they will get it. It is possible for someone to be exposed to the virus but not get infected.
Lifestyle Factors
Lifestyle factors can also play a role in determining who will and who won’t get COVID-19. People who are in good health and who practice good hygiene and social distancing are less likely to get the virus. People who are overweight or who have underlying health conditions, such as diabetes or heart disease, are more likely to get the virus.
Conclusion
There are many factors that can influence whether or not someone gets COVID-19. Genetics, immune system function, exposure to the virus, and lifestyle factors all play a role in determining who will and who won’t get the virus. It is important to be aware of these factors and to practice good hygiene and social distancing to help reduce the risk of getting the virus.