Updated: May 14, 2020
han Kim / Visiting Scholar, Nursing College of Fairleigh Dickinson University and Professor of Nursing Department of Kyungil University, South Korea
Now that the world is in turmoil with the new coronavirus infection, I realize that interest in health is important now more than ever. I feel fearful when dealing with the ever-increasing number of confirmed infected persons and urgent national policy announcements. However, the facts tell us that not all patients who are infected with the new coronavirus will die. In fact, even in China, without specialized treatment, about 80% of coronavirus patients showed mild symptoms and were cured (Shin Dong-a, 2020). Most of the patients who are in critical condition are elderly with poor immunity or already have underlying conditions – such as heart disease, diabetes, or lung disease. This phenomenon is similarly found in other countries. So, those with weaker immune systems have more severe symptoms.
If you have good immunity, you can create antibodies that overcome disease. Healthy cells will replace diseased cells making it possible to overcome diseases like COVID-19. The definition of immune system is defined as the system in the body that makes substances that fight infections and diseases such as viruses. Since birth, we have an innate function that is our primary physicochemical defense against germs and viruses; such as skin, nose and oral mucous membranes, mucous membranes of the digestive system, gastric acid, bronchial mucous membranes and mucus of the respiratory system, cilia movement, and cough. Your immune system depends on your genetic background, underlying disease, and current health conditions. Viruses or bacteria that these primary defenses have not destroyed, start the immune response by finding them first with the phagocytic cells (macrophages) and telling the T cells (the lymphocytes from the thymus that respond to antigens). Some of the T cells function to help B cells (antibody-producing white blood cells) to make antibodies efficiently, and NK (Natural Killer) cells protect the body by killing diseased cells infected with viruses.
It is thanks to this natural healing system in our body that we can live healthy day after day. Unless you have a congenital problem, you can prevent infectious diseases by improving you