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Posts Tagged ‘sars’

The Coronavirus Epidemic

Monday, February 24th, 2020

February 24, 2020

Last week, on February 19, the Wuhan coronavirus epidemic claimed its 2,000th victim. First recognized in human beings in the Chinese city of Wuhan in December 2019, the coronavirus has since spread steadily and touched nearly all parts of the world. Wuhan coronavirus is an informal name for a respiratory disease named Coronavirus Disease 2019 (COVID-19). Coronaviruses are one of many virus types that cause the common cold and other diseases of the upper respiratory system. The COVID-19 is a pneumonia-like disease. Its symptoms include breathing difficulties, coughing, and fever. It is a contagious disease, and the symptoms can be fatal in a small percentage of cases.

This illustration, created at the Centers for Disease Control and Prevention (CDC), reveals ultrastructural morphology exhibited by the 2019 Novel Coronavirus (2019-nCoV). Note the spikes that adorn the outer surface of the virus, which impart the look of a corona surrounding the virion, when viewed electron microscopically. This virus was identified as the cause of an outbreak of respiratory illness first detected in Wuhan, China. Credit: Centers for Disease Control and Prevention (CDC)

This illustration of Coronavirus Disease 2019 (COVID-19) shows the spikes on the outer surface of the virus that appear as a corona, giving the virus its name. Credit: Centers for Disease Control and Prevention (CDC)

On Jan. 30, 2020, when the disease had caused 170 deaths in some 8,000 confirmed cases, the World Health Organization (WHO) declared the virus outbreak to be a public health emergency of international concern. The WHO recommended urgent containment measures as the number of cases and deaths continued to climb. By mid-February, more than 40,000 cases of the virus had been confirmed. The disease was given the temporary name 2019-nCoV, for novel (new) coronavirus of 2019. It was later officially named COVID-19. The virus that causes the disease was named SARS-CoV-2.

The first COVID-19 cases occurred near a seafood and live animal market, suggesting the disease was zoonotic (spread from animals to people). However, human-to-human transmission of the disease was later reported. Chinese medical experts confirmed that, like the related diseases MERS and SARS, COVID-19 has its origins in bats. No vaccines or drugs are available to prevent or cure the disease. Treatment of infected patients mainly involves relieving the symptoms of infection.

The coronavirus was quickly detected in areas near Wuhan. In an effort to stop the spread of the disease, Chinese authorities restricted travel in Wuhan as well as in Ezhou, Huanggang, Jingmen, Xiantao, and other nearby cities. Many public events were canceled or postponed, and intense screening for the disease was instituted at airports in China and around the world. Despite these efforts, cases were soon reported in other Asian countries, and then in other nations throughout the world. Many countries took such steps as suspending all flights to China and quarantining incoming travelers from China to prevent further spread of the virus.

Tags: china, coronavirus, coronavirus disease 2019, COVID-19, epidemic, mers, outbreak, pneumonia, sars, SARS-CoV-2, world health organization, wuhan
Posted in Animals, Current Events, Health, Medicine, People | Comments Off

South Korea Combats Deadly Disease

Friday, June 12th, 2015

June 12, 2015

Health officials in South Korea this week sealed off staff and patients at two hospitals in the latest effort to stem an outbreak of a deadly respiratory disease called Middle East Respiratory Syndrome (MERS). By mid-June, more than 128 people were known to be infected with the contagious virus and at least 13 had died. Patients at the two hospitals are not allowed to leave their rooms; doctors and nurses, clad in protective clothing to prevent infection, care for them.

Workers wearing protective gears spray antiseptic solution as a precaution against the spread of MERS, Middle East Respiratory Syndrome, virus at an art hall in Seoul, South Korea, Friday, June 12, 2015. (Credit: AP Photo)

Workers wearing protective gear spray antiseptic solution as a precaution against the spread of MERS at an art hall in Seoul, South Korea, June 12, 2015. (Credit: AP Photo)

MERS is a severe, sometimes fatal, respiratory disease first identified in the Middle East. The disease was discovered in 2012 after a patient in Saudi Arabia died of the then-unknown respiratory illness. Symptoms of MERS include fever, cough, and shortness of breath, which sometimes progresses to pneumonia. About 30 percent of the patients infected with the disease in the Middle East have died. No vaccines or drugs are yet available to prevent or cure MERS. Treatment of infected patients mainly involves relieving the symptoms of infection.

Cases of MERS are known mainly from Saudi Arabia, Qatar, Jordan, Oman, the United Arab Emirates, and Egypt. Doctors believe the outbreak in South Korea originated with a person who had recently returned from a trip to the Middle East. In 2012, scientists identified the cause of MERS as a previously unrecognized variety of coronavirus, designated MERS-CoV. In human beings, coronaviruses are among the many viruses that cause common colds. MERS-CoV is classified in the same family as the coronavirus that causes SARS, a respiratory disease that caused panic in 2003 when an outbreak occurred in Asia. Scientists believe that dromedary camels are the likely source of the MERS-CoV. They have isolated strains of viruses that are genetically similar to MERS-CoV from camels in the Middle East. The disease can be transmitted to humans who come into contact with camels or such camel products as unpasteurized milk and undercooked meat.

To stop the spread of MERS, health officials in South Korea have closed thousands of schools and quarantined more than 2,500 people who may have been exposed to the virus. Individuals quarantined are asked not to leave their homes. Health officials are monitoring the quarantined population remotely through the use of smart phones and social media.

Other World Book articles:

  • Saudi Arabia (2014-a Back in time article)
  • Public health and safety (2014-a Back in time article)

Tags: coronavirus, mers, sars, south korea
Posted in Current Events, Health, Medicine | Comments Off

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