Covid-19 : How did coronavirus start and where did it come from?

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Since the beginning of 2020, the whole world has been living under the threat of a pandemic affecting the respiratory system: Covid-19. What is this disease really? Where did it come from and how could it spread so quickly? Answers in this article.

Wuhan market: the focus of the epidemic

The coronavirus SARS-Cov2 is the virus that causes Covid-19 disease. It was first discovered in China, in the city of Wuhan. Chinese scientists believe that the possible point of origin of the spread of this virus is the Huanan seafood market. This market sells not only fish, but also wild animals that the Chinese consume on a daily basis.

By the end of 2019, WHO received a report that more than two-thirds of people hospitalized and identified as having Cov2-SARS had attended this market. However, there is still some doubt that the “zero” patient, who was the first patient identified as having Covid 19, did not visit this market. There is every reason to believe that he was contaminated by someone who had been to the market. The Huanan market has been closed since 1 January 2020 and sanitary and disinfection procedures have been put in place.

Bat or pangolin: which animal is the cause?

The various studies carried out by scientists have shown that the SARS-Cov2 at the origin of Covid-19 is almost similar to the coronaviruses taken from certain species of bats: rhinolophers. These bats are smaller than those generally consumed by humans. Moreover, the form of coronavirus they contain is not transmitted to humans. So how could the virus infect humans and cause the pandemic we are currently experiencing?

The scientists then speculated that another animal was used as a host and that it was this animal that contaminated humans. The researchers identified this animal: pangolin. Pangolin is a small mammal threatened with extinction, but very popular in Asia. Its flesh, bones, scales and various organs are used in traditional Chinese medicine. Other people also consume this mammal.

In the end, how did SARS-Cov2 reach the man?

The hypothesis of an intermediate host is thus even more likely. When poachers hunt, they do not limit themselves to a single species. They also take other wild animals. All of these animals are stored in such close proximity that the virus can spread. Clearly, it is the trafficking and consumption of wild animals that has been responsible for the spread of this virus to humans.