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Coronavirus stated: 15th US case confirmed after MWC was canceled



  Artist's impression of a man wearing a surgical mask.

Robert Rodriguez / CNET

Chinese health authorities continue to fight the outbreak of pneumonia that was first discovered in downtown Wuhan in December. The disease is caused by a novel coronavirus, officially known as SARS-CoV-2, which has now infected over 64,000 people and claimed more than 1

,380 lives. On Thursday, the CDC confirmed a 15th US quarantine case at Joint Base San Antonio-Lackland, Texas.

The disease was first reported to the World Health Organization on New Year's Eve and was in the weeks in between . associated with a family of viruses known as coronaviruses, the same family responsible for SARS and MERS diseases and some cases of cold. On February 11, the WHO and other organizations agreed on the name COVID-19 for the disease.

On February 12, Chinese health authorities reported an increase in cases and deaths in Hubei, the epicenter of the outbreak. Over 13,300 new cases were registered in Hubei alone an increase of 700% compared to the previous day. The Chinese authorities adopted a new clinical case-validation method on Wednesday that includes "clinically diagnosed cases", which, according to CNN, could help treat patients earlier.

On January 30, a special WHO committee declared an emergency in the area of ​​public health to be internationally worrying. Human-to-human transmission has been confirmed outside of China, including the United States, and authorities around the world have made limited trips and forced quarantines to protect themselves from spreading.

Barcelona's Mobile World Congress the world's largest phone fair, took the unprecedented move to cancel the entire show, which routinely attracts 100,000 visitors from around the world. A number of companies, including LG, Amazon, Sony and Nvidia, had previously announced citing concerns about the corona virus, that they would not attend this year's show .

The situation will develop as more information becomes available. We've put together everything we know about the novel virus, what's next for researchers, and what steps you can take to reduce your risk.

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What is a corona virus?

Coronaviruses belong to a family known as Coronaviridae, and under an electron microscope they look like spiked rings. They are named after these spines, which form a halo or "crown" (corona is Latin for crown) around their virus envelope.

Coronaviruses contain a single strand of RNA in the envelope and cannot multiply as a virus without entering living cells and hijacking their machinery. The spikes on the virus envelope help corona viruses bind to cells, which gives them a way to open the door with C4. Once inside, they turn the cell into a virus factory and use their molecular conveyor belt to produce more viruses that are then transported out of the cell. The virus progeny infect other cells and the cycle begins again.

Typically, these types of viruses are found in animals, ranging from farm animals and domestic animals to wild animals such as bats. Some are responsible for diseases such as the common cold. If they jump to humans, they can cause fever, respiratory diseases, and inflammation in the lungs. In immunocompromised people such as the elderly or people with HIV-AIDS, such viruses can cause serious respiratory diseases that lead to pneumonia and even death.

Extremely pathogenic coronaviruses have been behind the diseases SARS (severe acute respiratory syndrome) and MERS (Middle Eastern respiratory syndrome) in the past two decades. These viruses were easily transmitted from person to person. SARS, which occurred in the early 2000s, infected more than 8,000 people and resulted in nearly 800 deaths. MERS, which appeared in the early 2010s, infected nearly 2,500 people and resulted in more than 850 deaths.

On February 11, the WHO announced that the new disease was officially named COVID-19 . "One name is important to prevent the use of other names that can be inaccurate or stigmatizing," said Tedros Adhanom Ghebreyesus, WHO Director General, during a briefing. "It also gives us a standard format for future coronavirus outbreaks."

The Coronavirus Study Group, part of the International Committee for the Taxonomy of Viruses, was responsible for naming the novel coronavirus itself. According to a preprint paper uploaded to bioRxiv on February 11, the virus will be known as SARS-CoV-2. The group "officially recognizes this virus as a sister of severe coronavirus with acute respiratory syndrome (SARS-CoVs)", the species responsible for the SARS outbreak in 2002-2003. The virus itself originally received the placeholder name "2019-nCoV".

Where did the virus come from?

The virus appears to have originated in Wuhan, a Chinese city about 650 miles south of Beijing with a population of more than 11 million. The Huanan Seafood Wholesale Market, which sells fish as well as meat from other animals, including bats, snakes, and pangolins, was involved in the spread in early January.

The renowned medical journal The Lancet published a comprehensive summary of the clinical features of patients infected with the disease, which date back to December 1, 2019. The very first patient identified was not exposed to the market, suggesting that the virus may have come from another place and was marketed there.

Chinese authorities closed the fish market on January 1.

Markets have been involved in the emergence and spread of viral diseases in previous epidemics, including SARS and MERS. A large majority of people who have confirmed that they are infected with the new corona virus have been in the Huanan seafood market in recent weeks. The market appears to be an integral part of the puzzle, but researchers continue to test and research the original cause.

An early report published in the Journal of Medical Virology on January 22nd suggested that snakes were the most likely wildlife reservoir for SARS-CoV-2, but the work became thorough only one day later through two other studies disproved. on January 23.


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