Coronavirus (SARS-CoV-2) is a virus that has been causing symptoms such as fever, dry cough, tiredness and difficulty breathing. The coronavirus is named that because the latin word “corona” means crown and the outer protein markers on the virus’s surface look like little spikes that make a crown. A virus is a nonliving entity that has a outer protein coat that surrounds a nucleic acid which can be DNA or RNA. Viruses cannot do their own metabolism so they are non-living, but they can enter a person’s body by going through the immune system’s defences and once inside the person’s body, the virus starts taking the cells of the person’s cells and injecting viral genetic material (either DNA or RNA, coronavirus has DNA as its genetic material) and the cells are exposed to the genetic material of the virus and they become viral cells and it weakens the immune system. The immune system tries to send out signals for other healthy cells to combat the viral cells and help destroy them. But the thing is that the viral cells were once the person’s own cells that became viral cells so when the healthy immune cells destroy the viral cells trying to keep the person alive, the person is losing some of their own cells in the process. But the hope is that there are more healthy cells in your body than viral cells that eventually the body will overcome the virus. However in severe cases of the virus sometimes the body’s responses are ineffective and the person ends up experiencing organ failure due to the virus. In the case of coronavirus in the severe cases, the virus has already started attacking the healthy cells of the lungs making it difficult to breathe. So in response, the walls of the alveoli sacs around the lungs thicken to provide more air sacs for you to get oxygen to your body. But as the walls of the alveoli sacs thicken more, they can cut off the oxygen supply to the lungs and without that oxygen your lungs will fail and without your lungs to carry oxygen which is important for your other organs you experience kidney failure and other organ failure and death results. Coronavirus is mostly dangerous in people who are elderly and have weak immune systems because people who are healthy often have good immune defenses that help prevent the virus from spreading to the serious stages, but people with breathing problems or weakened immune systems should take precautions because the coronavirus might become quite serious for them especially if it spreads to the lungs and makes it more difficult to breathe.