Health and Science

Pace of new coronavirus cases in Hubei on the rise again; cruise lines ban Chinese nationals

The coverage on this live blog has ended — but for up-to-the-minute coverage on the coronavirus outbreak, visit the live blog from CNBC's Asia-Pacific team.

Total cases: More than 33,800 as of Friday evening
Total deaths: At least 722 worldwide as of Friday evening

7:30 pm: Lockheed Martin drops out of Singapore Airshow over coronavirus concerns

The Pentagon shrunk the size of its delegation traveling to the Singapore Airshow and U.S. defense firm Lockheed Martin Corp said it would not attend, as the impact of the coronavirus has reduced participation in the event. Undersecretary of Defense Ellen Lord will no longer attend the event "due to extenuating circumstances," Lieutenant Colonel Mike Andrews said in a statement.

7:20 pm: China virus death toll rises to 722; new cases increase by 3,399

China's National Health Commission said there were an additional 86 deaths and 3,399 new confirmed cases in the country as of the end of Friday. That brings the total cases in mainland China to 34,546 as the death toll rises to 722, the government said.

Correction: This article was updated to reflect that the new coronavirus has infected 34,546 people in mainland China. A previous version misstated the figure.

5:30 pm: Pace of new cases in China's Hubei picks up again

The number of deaths in China's central Hubei province from a coronavirus outbreak had risen by 81 to 699, the province's health commission said in a statement on its website. There had been a further 2,841 cases detected in Hubei, the epicenter of the outbreak, taking the total in the province to 24,953. World Health Organization earlier said it was encouraged by a slowing pace of new cases over the past two days, however, this latest data reverses that trend. —Cheddar Berk with Reuters

5:24 pm: Yardeni says epidemic could trigger market correction

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Coronavirus is the biggest global economic threat right now, Ed Yardeni suggests

Yardeni Research President Edward Yardeni said the U.S. economy was showing signs of improvement before the deadly pneumonia-like virus started making headlines. The longer this situation persists the more likely the event could weigh on stocks, possibly sparking a correction, Yardeni said. He said he would keep new cash on the sidelines until there is more clarity around the spread of the illness. The Dow Jones Industrial Average closed 277.26 points lower, or nearly 1%, to 29,102.51. The S&P 500 dipped 0.5% to 3,327.71. The Nasdaq Composite also slid 0.5% to close at 9,520.51. Those losses snapped a four-day winning streak for the major average. —Cheddar Berk, Imbert

4:51 pm: Norwegian Cruises bans Chinese-passport holders, passengers who traveled to China within 30days

Norwegian Cruises imposed the strictest measures yet to prevent coronavirus. It said, "Any guest that holds a Chinese, Hong Kong, or Macau passport, will be unable to board any of our ships, regardless of residency." The company also announced that anyone who has traveled to mainland China or even visited an airport in the country in the 30 days prior to their cruise departure will not be allowed on the ship. The decision comes as several cruise ships around the world endure coronavirus outbreaks and scares. — Feuer

4:24 pm: Honda says operations in Wuhan suspended through Feb. 13

Honda spokesman Marcos Frommer said the company will keep operations with Dongfeng Motor in Wuhan, China suspended through Feb. 13, days later than initially planned. Facilities with GAC Motor and other companies in Guangzhou, located about 600 miles south of Wuhan, are scheduled to open Monday, according to the U.S.-based spokesman. Chinese newspaper Nikkei reported Friday that Honda will aim to restart production in the Wuhan area on Feb. 17. Frommer did not immediately respond for comment on the report. —Wayland

4:02 pm: Apple extends closure of stores and offices in China

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Chinese social media lights up at death of coronavirus whistleblower, Dr. Li Wenliang

Apple said it is extending the suspension of its stores and offices in China to "the week of February 10." The company said last week that it would shut down all its stores in mainland China through Feb. 9. China is a key growth area for Apple, which has struggled against local competitors that sell Android phones. "We will continue to update our customers as opening dates are finalized," Apple said in a statement. "Our online store remains open." —Feuer

3:40 pm: Images from the epicenter of the outbreak

The coronavirus outbreak worsened this week, with more than 31,000 cases and at least 636 deaths. CNBC will deliver live coverage of the virus, including photos from Wuhan, the epicenter of the outbreak, in a special report at 7 p.m. —Lovelace

2:55 pm: Illumina is working with China on testing and training

Illumina Chief Medical Officer Phil Febbo discusses the possibility of a cure for the virus. —Cheddar Berk

2:36 pm: Trump administration commits $100 million to outbreak relief efforts

The Trump administration announced that it would commit up to $100 million in existing funds to help the World Health Organization, China and other infected countries fight the coronavirus outbreak. WHO has been asking member countries for donations to help with response efforts after tapping $9 million from its contingency fund for emergencies earlier this week. When asked about contributing additional funds, Health and Human Services Secretary Alex Azar that it was "premature" to discuss that. —Lovelace

2:26 pm: Dow falls 300 points on coronavirus concerns

The Dow Jones Industrial Average was down 300 points, or 1%, as concerns over coronavirus outweighed stronger-than-expected U.S. jobs data. The rising number of cases has fueled concern over the effects on China's economy. "China is really slowing and that's worrying people for sure," said Ed Hyman, chairman of Evercore ISI, on CNBC's "Squawk on the Street." —Imbert

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Illumina CMO on working with China on coronavirus cure

1:34 pm: Automakers faced challenges in China, the virus makes that worse

With the virus extending factory shutdowns in China, the Detroit automakers are starting to look at contingency plans. All three declined to estimate potential losses. At an investor meeting this week, General Motors China President Matt Tsien said fallout from the outbreak could lead to a larger near-term sales decline than the automaker expected. GM operates 15 assembly plants in China with its partners. Ford has six and Fiat has two. Factory closures also can hurt supply chain. —Wayland

1:12 pm: Royal Caribbean bans Chinese passport-holders from its ships amid coronavirus outbreak

After four guests on one of its ships were hospitalized to be tested for the new coronavirus, Royal Caribbean announced it is banning all Chinese passport-holders from its ships. "Any guests holding a Chinese, Hong Kong, or Macau passport, regardless of when they were there last, will not be allowed to board our ships," the company said. "Regardless of nationality, any guest or crewmember traveling from, to, or through mainland China, Hong Kong, or Macau less than 15 days prior to their sailing will be unable to board any of our ships." —Feuer

CORRECTION: This story has been updated to correct the spelling of Royal Caribbean in an earlier headline.

1:00 pm: Trump's coronavirus task force to hold press conference

Members of President Donald Trump's coronavirus task force are expected to provide an update on the disease at a press conference at 2 p.m. Last week, the task force announced that certain foreign nationals deemed to pose a risk of transmitting the disease would be temporarily denied entry into the U.S. Some returning American citizens potentially at risk would also be quarantined. Watch the press conference here. —Lovelace

11:47 am: WHO says cases in China are slowing

The number of new coronavirus cases slowed in China for a second day, but it's too early to celebrate, World Health Organization officials said at a news conference. WHO Director-General Tedros Adhanom Ghebreyesus said the fewer number of cases is "good news," but cautioned the public not to read too much into the new data. "The numbers could go up again," he told reporters. "As you know, epi curves can zig zag," referring to a diagram that shows the distribution of cases over time. —Lovelace

11:34 am: The Fed flags coronavirus as potential threat to US growth

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The Fed: Coronavirus is a new risk to outlook

The Federal Reserve on Friday announced that it's now monitoring the coronavirus as a potential threat to U.S. growth. The central bank wrote that "possible spillovers from the effects of the coronavirus in China have presented a new risk to the outlook. "Though recent reports have suggested steadier economic growth in Europe and China, the Fed warned the disease could "lead to disruptions in China that spill over to the rest of the global economy." —Franck

10:56 am: VP Pence praises China's 'unprecedented level of transparency' in dealing with the coronavirus outbreak

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Pence: China has shown 'unprecedented' transparency on coronavirus

Vice President Mike Pence said Beijing has demonstrated "an unprecedented level of transparency" with world health officials amid the fast-spreading coronavirus outbreak. "It's heartbreaking but we stand ready with China to provide them any and all support," he told CNBC's Wilfred Frost on "Squawk on the Street." Pence referenced Thursday's phone call between President Donald Trump and his Chinese counterpart, President Xi Jinping, after which Trump tweeted that China will "be successful" in getting control over the deadly coronavirus. "Trump made it clear that the United States is ready, willing and able to deploy resources," Pence added. —Bursztynsky

10:29 am: White House sees a minimal impact on US economic growth from outbreak

The White House's economic adviser said that President Donald Trump's administration does not expect the coronavirus in China will have a major effect on the U.S. economy. "There's a lot of variables involved and things we don't know. Internally we have looked at a drop in GDP of perhaps two-tenths of 1% that's all we found so far. Again, based on the past and based on what we're seeing " National Economic Council Director Larry Kudlow told reporters. —Reuters

10:16 am: CDC removes four from Royal Caribbean cruise for testing in New Jersey

The Centers for Disease Control said a family of four have been removed from a Royal Caribbean cruise ship at the Bayonne Port in New Jersey. "The family has a travel history to mainland China, but not a history of travel to Hubei Province," CDC spokesperson Kristen Nordlund said. New Jersey Department of Health will facilitate the specimen collection, and the samples will be sent to CDC for testing." Health officials screened about two dozen for the virus, Bayonne Mayor Jimmy Davis tweeted. —Feuer

10:14 am: WHO holds press conference on outbreak

World Health Organization officials are holding a press conference to update the public on the new coronavirus outbreak. Dr. Tedros Adhanom Ghebreyesus, the group's director-general, said the number of new cases is slowing. However, he expressed concern about supplies of items such as masks to protect against the virus, saying the prices of some of these items are skyrocketing. —Cheddar Berk

9:48 am: The number of cases on Carnival cruise ship near Japan jumps by 41

The Japanese Health Ministry confirmed 41 new cases of the virus on a quarantined cruise ship off the coast of Japan. The Diamond Princess cruise ship, which is operated by Carnival's Princess Cruises, is carrying about 3,700 passengers and crew at the port of Yokohama. The new cases bring the total to 61 cases out of 273 people who were suspected to be exposed to the virus and tested for it. Among the newly infected people, there is one from Argentina, five from Australia, five from Canada, 21 from Japan, one from the U.K. and eight from the U.S. —Feuer

9:20 am: Van's parent says 60% of its stores in China are closed for now

Shares of VF Corp., the parent of Vans, were down slightly after the company revealed it has been forced to close about 60% of its owned and licensed stores in China due to the outbreak. Stores in mainland China had accounted for about 6% of its fiscal 2019 revenue. In addition, the company sources about 16% of its total cost of goods sold from China, and about 7% of that gets shipped to the U.S. market. VF said it's "not possible" to gauge the impact of its supply chain at this time. —Cheddar Berk

8:39 am: Canada Goose says travel restrictions are hurting sales

Canada Goose Holdings said its profits have been hit by fallout from the virus. The outerwear maker's stock dipped 4% after it announced that reduced consumer traffic and travel restrictions have hurt sales. The company cut its forecast for annual revenue growth from 20% to 13.8% to 15%, which could mean a loss of up to $51.6 million Canadian. —Miller

8:15 am: Uber CEO Dara Khosrowshahi says outbreak is not hitting the business

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Uber CEO: Coronavirus outbreak 'not material in any way' to overall businesses

7:49 am: Burberry closes a third of its China stores, revises guidance

Burberry warned of a hit to demand, withdrew its financial guidance for 2020 and said it had closed more than a third of its stores in mainland China. It said spending by Chinese tourists in Europe and elsewhere had not been hurt as much, but given widening travel restrictions, it forecast this would worsen in the coming weeks. — Reuters

7:20 am: Ericsson withdraws from major Barcelona conference over coronavirus concerns

Sweden's Ericsson has announced it will not attend Mobile World Congress in Barcelona, Spain, later this month, saying it cannot ensure the safety of employees and customers amid concerns over the coronavirus. "The health and safety of our employees, customers and other stakeholders are our highest priority. This is not a decision we have taken lightly," CEO and President Borje Ekholm said in a statement. "We were looking forward to showcasing our latest innovations at MWC in Barcelona. It is very unfortunate, but we strongly believe the most responsible business decision is to withdraw our participation from this year's event." — Meredith

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Here's how the coronavirus restrictions are impacting Chinese residents

6:35 am: WHO director-general warns of a chronic shortage of personnel protective equipment

The director-general of the World Health Organization has warned about the risk of a chronic shortage of protective equipment as countries work to tackle the coronavirus outbreak. Speaking at an executive board meeting at WHO headquarters in Geneva, Switzerland, Tedros Adhanom Ghebreyesus said he was concerned about a lack of masks, gloves and other protective equipment, Reuters reported. Tedros also said there had been fewer reported coronavirus infections in China over the last two days. However, "the numbers could go up again," he cautioned. Late last month, health experts told CNBC that the panic buying of face masks to protect against the coronavirus was "completely understandable," but ultimately unwarranted. They also warned a shortage of masks could pose a risk to health workers. — Meredith

5:55 am: Trump hails 'great discipline' in China to tackle coronavirus

President Donald Trump has heaped praise on Chinese President Xi Jinping for "leading the counterattack" against the coronavirus. The U.S. president said via Twitter that he had recently had a "very good" conversation with Xi, adding that the White House was "working closely" with Beijing to help stop the outbreak. "Great discipline is taking place in China, as President Xi strongly leads what will be a very successful operation. We are working closely with China to help!" Trump said. — Meredith

All times above are in Eastern time. Read CNBC's coverage from our Asia-Pacific and Europe teams overnight: Trump heaps praise on Xi, Singapore raises virus alert to SARS level.

— Reuters and CNBC's Michael Wayland, Thomas Franck, Jessica Bursztynsky, Christina Cheddar Berk, Hannah Miller, Saheli Roy Choudhury, Evelyn Cheng, Joanna Tan, Fred Imbert and Sam Meredith contributed to this report.