UNITED STATES (OBSERVATORY NEWS) — A virus, perhaps unknown to science, is causing a major disease in China and is spreading to many other countries.
At least 200 people have died from the virus in China, which emerged in the city of Wuhan in December 2019, and there are already about 12,000 cases worldwide. 22 countries have been affected by the virus, including the UK, but no casualties. Experts say the number is expected to rise.
The emergence of a new virus that has caused pneumonia in patients is always a concern, and health authorities around the World Health Organization have declared a state of emergency.
But what is this virus?
Authorities in China have confirmed cases caused by coronavirus. There is a family of viruses but only 6 are known for the infection that can cause people.
Sars Syndrome, which was caused by a coronavirus, killed 778 people out of 8,098 affected in 2002.
What are the symptoms?
At first, fever develops, then cough and after a week the patient has difficulty breathing. One in 5 cases is confirmed as a severe symptom. The coronavirus family can cause symptoms ranging from mild to severe to death.
Where did it come from?
New viruses can be detected at any time. They can be the source of a species and transmitted to humans unnoticed. Many of the cases of coronavirus are related to the South China Seafood Wholesale market in the city of Wuhan. But the discovery of some other documents showed that the birth of this virus has nothing to do with this market.
In 2002, the Sars virus first appeared in the bats, then the cats and then the humans became infected.
From which species does coronavirus arise?
If the species that gives rise to a virus is detected, then the problem becomes very simple to solve. While some mammals may carry coronavirus, the South China Seafood Wholesale market has live wildlife, including chickens, bats, rabbits, snakes, which are most likely the source of the virus.
The virus currently caused is more related to horse bats. However, it is not yet confirmed that the bats are the source of the coronavirus, but may have transmitted the virus to another species on the market.
Professor Woolhouse says: ” The reason is because of the size of the territory, the population density, and the close contact with the species that could be the source of the virus.”
This article is written and prepared by our foreign editors writing for OBSERVATORY NEWS from different countries around the world – material edited and published by OBSERVATORY staff in our newsroom.
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