A new Chinese coronavirus, a cousin of the SARS virus, has infected hundreds since the outbreak began in Wuhan, China, in December. Scientist Leo Poon, who first decoded the virus, thinks it likely started in an animal and spread to humans."What we know is it causes pneumonia and then doesn't respond to antibiotic treatment, which is not surprising, but then in terms of mortality, SARS kills 10% of the individuals," Poon, a virologist at the School of Public Health at The University of Hong Kong, said.It's not clear how deadly the Wuhan coronavirus will be, but fatality rates are currently lower than both MERS and SARS. Experts stress that it will change as the outbreak develops. The World Health Organization offered guidance to countries on how they can prepare for it, including how to monitor for the sick and how to treat patients. Here's what you should know about coronaviruses.
What is a coronavirus?
Corona Virus Symptoms
How it spreads?
Viruses can spread from human contact with animals. Scientists think MERS started in camels, according to the WHO. With SARS, scientists suspected civet cats were to blame. Officials do not yet know what animal may have caused the current outbreak in Wuhan.When it comes to human-to-human transmission of the viruses, often it happens when someone comes into contact with an infected person's secretions, such as droplets in a cough.Depending on how virulent the virus is, a cough, sneeze or handshake could cause exposure. The virus can also be transmitted by touching something an infected person has touched and then touching your mouth, nose or eyes. Caregivers can sometimes be exposed by handling a patient's waste, according to the CDC.Human-to-human transmission has been confirmed for the Wuhan coronavirus, but experts are now trying to understand who is transmitting it most, who is at most risk and whether transmission is occurring mostly in hospitals or in the community. SARS and MERS were largely transmitted inside hospitals, Horby said. Some people are also considered to be "superspreaders."Who is affected?MERS, SARS and the Wuhan coronavirus appear to cause more severe disease in older people, though uncertainty remains around the latest outbreak. Of the cases of Wuhan coronavirus reported so far, none are yet confirmed to be among children, Horby said. The average age is people 40 or over, he said.Coronavirus treatmentThere is no specific treatment, but research is underway. Most of the time, symptoms will go away on their own and experts advise seeking care early. If symptoms feel worse than a standard cold, see your doctor.Doctors can relieve symptoms by prescribing a pain or fever medication. The CDC says a room humidifier or a hot shower can help with a sore throat or cough.Drink plenty of fluids, get rest and sleep as much as possible.Should you worry about the Wuhan coronavirus?The Wuhan coronavirus fatality rate is lower than for SARS and MERS, but still comparable to the 1918 Spanish flu pandemic, explains Neil Ferguson, professor of mathematical biology at Imperial College London."It is a significant concern, globally," Ferguson says, noting that we don't fully understand the severity.Ferguson believes the fatality rate is likely to be lower due to an "iceberg" of milder cases we are yet to find, but he highlights that novel viruses spread much faster through a population.
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Latest Update about Coronavirus
South Korea reported a jump of 142 additional cases overnight, bringing the country's total to 346, according to the South Korean Centers for Disease Control and Prevention (KCDC).
- New cases breakdown:
- North yeongsang province (which surrounds southeastern city of Daegu): 103
- Daegu city: 28
- Busan: 2
- Gyeonggi province: 2
- North Chungcheong province: 2
- Daejeon: 1
- Gwangju: 1
- North Jeolla province: 1
- Sejong: 1
- Jeju: 1
- Clusters: Among the 142 new cases, 92 are linked to the Cheongdo Daenam hospital, in North Gyeongsang province and 38 are linked with the Shincheonji religious group. South Korean authorities earlier this week were seeking to question more than 1,000 members of the group who attended a service with one of the recently confirmed cases.
- Deaths: South Korea reported its second death from the virus on Friday.
- Seoul tries to control spread: The South Korean government is taking a range of measures in an attempt to stop the spread of the virus, including shutting down public places in the capital and designating "special care zones."
- After three cases were detected in the country's armed forces, all South Korean military personnel have been restricted from leaving their bases and going on vacation.
The Standard Precautions
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