The coronavirus outbreak that originated in Wuhan, China has spread to 55 other countries.
The disease, named COVID-19, has killed more than 2,800 people and infected more than 84,000. (For the latest case total and death toll, see Business Insider's live updates here.)
Here's what to know about the coronavirus — including symptoms, spread, and travel warnings — in nine charts and graphics. Visit Business Insider's home page for more stories.
A dramatic uptick in coronavirus cases outside of China this week has sparked new fears about the outbreak's potential to become a pandemic. The illness is being diagnosed among hundreds of people in pockets of South Korea, Iran, and Italy. The number of cases in South Korea jumped 60% between Wednesday and Friday, from 1,261 cases to 2,022. Bill Gates has already called it a pandemic, though the World Health Organization has not yet. In the US — which has identified 16 cases stateside and another 47 among repatriated citizens — the Centers for Disease Control and Prevention (CDC) warned on Tuesday that it anticipates an escalation of the outbreak. "We expect we will see community spread in this country," Nancy Messonnier, director of the National Center for Immunization and Respiratory Diseases, said in a press conference, adding, "it's more of a question of when." Since then, two possibles case of "community spread" have been reported in the US. One patient is in serious condition at a hospital in Sacramento, California; the other is a 65-year-old in Santa Clara County, officials reported on Friday. The US and other nations have implemented mandatory 14-day quarantine measures for returning travelers and residents who may have been exposed to the virus in China. Since the first case of COVID-19 — the disease caused by the virus — was reported in December, more than 84,000 people have been infected. Cases have been reported in 55 countries outside of China. About 80% of cases are mild, according to one study, but older people with preexisting health issues are more at risk of severe complications like difficulty breathing and lung infections. These nine charts and graphics lay out what to know as the outbreak continues to grow.Here's where cases have been confirmed so far: The vast majority of cases, about 95%, are in China. South Korea has the second-highest total: more than 2,000. South Korea saw its first coronavirus case on January 20, and the total grew to 104 over the next month. As of Friday, however, the number of cases in South Korea had jumped to 2,022.
The spike seems to have happened after a 61-year-old "super-spreader" infected 43 other members of a fringe religious group called the Shincheonji Church of Jesus. More than half of South Korea's total infected patients are either members of the religious group or had contact with a church member. This chart shows the rate at which the coronavirus has spread. The true number of infected people is probably higher than the official total. Academics from Imperial College London suggested earlier this month that only about one in 19 people infected with the virus were receiving a diagnosis. More than 3,300 healthcare workers have been infected in China. The coronavirus doesn't impact all patients equally.
A recent study from the Chinese Center for Disease Control and Prevention showed that the virus most seriously affects older people with preexisting health problems. The study collected data from more than 44,000 confirmed patients in China through February 11. It offers one of broadest depictions of how COVID-19 operates in humans. The data suggests a person's chances of dying from the disease increase with age. The study did not report any deaths in children younger than 10, who represented less than 1% of the patients. The total number of cases and deaths have far surpassed those of the SARS outbreak. SARS killed 774 people and infected 8,098 between November 2002 and July 2003. The new coronavirus has killed more than three times that many people in eight weeks. The virus' pneumonia-like symptoms include fever and difficulty breathing.
According to the CDC, a person is at risk if they:
Experience fever, coughing, or shortness of breath within 14 days of traveling to China Have come into close contact with someone who has shown these symptoms and recently traveled to China
CDC officials said the virus' incubation period — how much time passes between when a patient gets infected and when their coronavirus test comes back positive — is believed to be range from two to 14 days. The US has reported 63 coronavirus cases, including 44 repatriated citizens who were on the quarantined Diamond Princess cruise ship in Japan and three people who were evacuated from Wuhan. On Wednesday, the CDC reported that a patient at the UC Davis Medical Center in Sacramento, California, tested positive for the coronavirus, despite having no known contact with anyone person infected or a history of traveling to China. A second instance of the same kind of community spread was reported in Santa Clara County on Friday. Messonnier said Americans should be prepared for the virus to spread in the US. "The disruption of daily life might be severe," she added. The Department of Defense and CDC have approved at least 15 US military bases as quarantine camps.
About 800 US citizens evacuated from Wuhan have been brought to some of these military bases and put under a mandatory two-week quarantine. So far, about 400 of them have been released after testing negative for the virus. "They have been watched more closely than anyone else in the United States at this point in time," Nancy Knight, director of the Division of Global Health Protection at the CDC, said in a briefing. The state department and CDC have issued travel warnings for countries affected by the coronavirus. Currently, China, South Korea, Iran, and Italy are at Level 3, meaning the CDC recommends avoiding non-essential travel to those countries. Aria Bendix contributed reporting to this story. Read more about the novel coronavirus: The US has confirmed 63 coronavirus cases. Here's what we know about all the US patients. How the 'failed' quarantine of the Diamond Princess cruise ship started with 10 coronavirus cases and ended with more than 700 What to know about the coronavirus outbreak The coronavirus has pandemic 'potential' as it spreads in South Korea, Italy, and Iran, according to WHO
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South Korea has tested 140,000 people for the coronavirus. That could explain why its death rate is just 0.6% — far lower than in China or the US.
South Korea has tested more than 140,000 people for the new coronavirus and confirmed more than...South Korea has tested more than 140,000 people for the new coronavirus and confirmed more than 6,000 cases. Its fatality rate is around 0.6%. This suggests that, as many health experts have predicted, the virus' fatality rate seems to decrease as more cases are reported. That's because more widespread testing leads more mild cases to be included in the count. The US, by contrast, has tested around 1,500 people. The country has 221 confirmed cases and 12 deaths, suggesting a death rate of 5%. The US' testing capacity has been limited. Visit Business Insider's homepage for more stories. The US and South Korea announced their first cases of the coronavirus on the same day: January 20. More than six weeks later, the US Centers for Disease Control and Prevention has tested around 1,500 people for the virus. South Korea, meanwhile, has tested about 140,000. The nation is capable of conducting as many as 10,000 tests per day and has built drive-thru testing clinics that can detect coronavirus cases in just 10 minutes. Officials say the clinics can reduce testing time by a third. This quick response has allowed South Korea to detect more than 6,000 coronavirus patients, around 35 of whom have died. That means the country's fatality rate — the number of deaths out of the total number of infections — is around 0.6%. The World Health Organization estimated on Tuesday that the global fatality rate for the coronavirus is around 3.4%. Some health experts predict that this rate will decrease as the number of cases rises. South Korea offers solid evidence for that prediction so far. Widespread testing could mean a lower death rate because the majority of coronavirus cases — around 80% — are considered mild. But the cases reported first are often those with the most severe symptoms, since those people go to the hospital. Milder cases, on the other hand, could go uncounted or get reported later on. "If indeed we discover that there are far more cases that are actually being reported, and that one of the primary reasons for this is that we're just not detecting asymptomatic or mild or moderately symptomatic cases that don't end up seeking healthcare, then our estimates for the case fatality rate will likely decrease," Lauren Ancel Meyers, an epidemiologist at the University of Texas at Austin, told Business Insider. Mild cases, she added, "may not make it onto the radar of public health agencies." In the US, people without severe symptoms haven't been tested because of limited availability, which may explain why the nation's death rate so far is high: more than 5%. That's higher than the death rate in China — nearly 4% — where the outbreak started. Many mild cases could go undetected People under age 40 have just a 0.2% risk of dying from the virus, early research has shown. The majority of severe cases are among elderly patients or those with preexisting health problems. "Most people who get infected won't even know they have it," New York Gov. Andrew Cuomo said at a press briefing on Wednesday. A day later, he added: "The facts do not merit the level of anxiety that we are seeing." But until Wednesday, the CDC had only tested people who had recent exposure to a confirmed patient, had travelled to a country with an outbreak, or required hospitalization. This has made it difficult for doctors and health officials to test or diagnose many patients with mild cases, which likely explains the US' high death rate. "There's another whole cohort that is either asymptomatic or minimally symptomatic," Anthony Fauci, director of the National Institute of Allergy and Infectious Diseases, said in a February 6 briefing. "We're going to see a diminution in the overall death rate." 'You don't have the capacity to test everybody' South Korea saw a spike in coronavirus cases after a 61-year-old woman transmitted the virus to other members of a fringe religious group, the controversial Shincheonji Church of Jesus. On February 23, South Korean president Moon Jae-in warned that the country faced "a grave turning point" in its efforts to contain the outbreak. Since then, it has implemented widespread testing. In the US, the CDC opted to develop its own test, one that could identify multiple viruses, ProPublica reported. But the tests turned out to be faulty: A problem with one ingredient caused more than half of state labs to receive inconclusive results. In response, the CDC said it would replace the ingredient and manufacture new tests. "What happened in the US is the CDC created and sent out a test to all 50 states and then said, 'Wait, hold up, don't use it,'" Matthew McCarthy, a hospitalist at Weill Cornell Medicine in New York City, told CNBC last week. By the end of February, only three of the nation's more than 100 public-health labs had verified the CDC test for use. In the meantime, labs had to send samples to the CDC in Atlanta to confirm a case. That causes a delay of up to 48 hours between testing and confirmation. "At first, CDC was the only place where testing could be performed," Richard Martinello, an associate professor of infectious disease at the Yale School of Medicine, told Business Insider. "For a country of our size, when you only have a single site doing that, it limits the resources available for testing." McCarthy told CNBC he had to call the Department of Health and "plead to test people" at his hospital in New York. The US has reported around 220 cases of the virus so far, though the CDC has only confirmed 148. The confirmed cases include 46 passengers who were quarantined on the Diamond Princess cruise ship in Japan and three repatriated evacuees from Wuhan, China. But researchers at the Seattle Flu Study estimated that the number of infections in Washington state alone may have already reached 570. The US' official death count as of Thursday is 12. On Saturday, the Food and Drug Administration (FDA) began allowing academic hospital labs to develop and use their own coronavirus tests. The New York health department is now partnering with local hospitals to expand testing capacity for the virus, Gov. Andrew Cuomo said on Tuesday. The goal is to conduct 1,000 test per day, he added — but the current capacity is still limited. "We're at a couple of hundred tests per day, so you prioritize who can be tested," Cuomo said. "You don't have the capacity to test everybody 'just in case.'"Join the conversation about this story » NOW WATCH: Pathologists debunk 13 myths about the coronavirus, including why masks won't help
Country confirms more than 430 cases as WHO head voices concern over sixth death in IranThousands...Country confirms more than 430 cases as WHO head voices concern over sixth death in IranThousands of members of a secretive religious sect in South Korea are being screened for the new coronavirus after more than 430 cases were confirmed in the country by officials, one of several fresh clusters of the disease globally.More than 78,000 people around the world have been infected by the Covid-19 virus, with most cases in mainland China, though clusters that have unclear origins have emerged in Singapore, Iran and South Korea. Continue reading...
Patients and staff at a hospital near Daegu account for bulk of 142 new cases as...Patients and staff at a hospital near Daegu account for bulk of 142 new cases as links to controversial ‘sect’ are investigatedSouth Korea has reported another huge jump in cases of coronavirus as the country fights to contain the spread of the deadly disease.The number of infections has increased by 142 to 346, officials said on Saturday, with most of the cases linked to the city of Daegu and surrounding region two hours south of Seoul. Continue reading...