People are having a war with infectious diseases. This matter never ends just like Pest, SARS, MERS, Ebola, and Zika. Humans always fought against these infectious diseases. They killed people and hurt people. Now, another infectious disease is here, and it is called coronavirus. This disease has spread all around the world and is hurting us, humans.

▲ Coronavirus is called as the worst disease in 21st Century

Coronaviruses(nCov) are a group of viruses known to be containing strains that cause potentially deadly diseases in mammals and birds. In humans, the viruses cause respiratory infections. Coronavirus(nCov) started in Wuhan, China. More than three million people in the whole world are infected with this disease, and more than 200,000 people died because of this. Wuhan city is now locked down. Nobody can go in there or get out of there without any permission. There are about 10,000 Koreans who are affected so far. Although thanks to the doctors and medication centers, Korea is getting away with this situation.

▲ Comparison of MERS, SARS, and Coronavirus until day 62 (From Naver Cafe Dieselmania)

MERS and SARS are similar to the Wuhan coronavirus. They all have a similar form of the virus. Although, the 2019 Wuhan coronavirus has spread the fastest compared to MERS and SARS. Also, the situation of coronavirus is the worst of these three diseases. At first, coronavirus didn't seem as severe as MERS and SARS. But as time pass by, coronavirus turned into the biggest disease in the 21st century. But to have a comparison they all have the commonality that they are not as fatal to kids. For example, one of Hong Kong's families was suffering from n-Cov. However, the child in the family was affected but did not experience any symptoms.

Then, what are the actions to prevent coronavirus? The Korean government has given instructions on what people should do against it. First of all, people need to put on a mask, especially when having respiratory symptoms. Second, always wash the hands for more than 30 seconds with soap in flowing water. Last, always keep a social distance with other people. Since n-Cov is critical when you are in a close distance(especially when in the sealed room), you must keep your social distance to prevent the disease.

There are always going to be infectious diseases in the world. Thus, people should always be ready, and they should work hard to stamp out infectious diseases.