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On the front lines in China

A never-before-seen deadly virus first detected in the Chinese city of Wuhan has infected people in China and around the world with a pneumonia-like illness. The disease has caused alarm worldwide, from Australia to Italy, Iran to Japan, Singapore to the US.

Here are some scenes from around the globe as scientists and citizens struggle to understand and contain the illness. 

Zhou Qiong, a doctor in the department of respiratory medicine at Union Hospital in Wuhan, China, is a member of an "assault team" formed to fight the coronavirus. The hospital is affiliated with Tongji Medical College of Huazhong University of Science and Technology.

Keep updated on the fast-moving developments here. 

Originally published Jan. 25 and updated as new developments occur.

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Updated:Caption:Photo:Cheng Min/Getty Images
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Quarantine in Ankara

In Ankara, Turkey, on Feb. 25, an ambulance transports passengers and crew of a Turkish Airlines plane from Tehran to a local hospital for a 14-day quarantine and to be tested for possible coronavirus infection.

Two weeks earlier, on Feb. 11, the World Health Organization officially named the virus SARS-CoV-2, and the resulting illness COVID-19.

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Updated:Caption:Photo:Getty Images
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Tent in Tuscany

A pre-triage medical tent stands ready in front of Santa Maria Nuova Hospital in Florence on Feb. 25 as Tuscany reported its first two cases of COVID-19.

Also on Feb. 25, the Centers for Disease Control and Prevention warned that coronavirus cases in the US are likely to spread, though the immediate threat to the general public is still low.

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Updated:Caption:Photo:Carlo Bressan/AFP via Getty Images
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Dr. Bruce Aylward

Epidemiologist Dr. Bruce Aylward, of the World Health Organization, shows graphics documenting the coronavirus outbreak at a press conference in Geneva on Feb. 25.

A day earlier, WHO noted that China had, as of that morning, reported more than 77,000 cases of COVID-19, including more than 2,600 deaths. It also said that the epidemic peaked and plateaued there between Jan. 23 and Feb. 2, and has been declining steadily since then. Outside China, there were at that point 2,074 cases in 28 countries, and 23 deaths. WHO noted that the sudden increase in cases in Italy, Iran and South Korea were "deeply concerning" but that all countries should have confidence that "this virus can be contained."

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Updated:Caption:Photo:Fabrice Coffrini/AFP via Getty Images
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MWC canceled

Mobile World Congress, the biggest event of the year for the mobile phone industry, was scheduled to take place the week of Feb. 24. But with less than two weeks to go before the show, as more and more companies pulled out because of coronavirus worries, MWC officials canceled the event.

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Updated:Caption:Photo:Paco Freire/SOPA Images/LightRocket via Getty Images
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Mourning whistleblower Dr. Li Wenliang

A card with a portrait of Dr. Li Wenliang is surrounded by flowers at Li's hospital in Wuhan on Feb. 7. The 34-year-old Chinese doctor is considered a whistleblower for speaking out about the rising cases of pneumonia in an online chat room during the early days of the outbreak. He passed away Feb. 6 as a result of the virus. 

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Updated:Caption:Photo:Feature China/Barcroft Media via Getty Images
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Another cruise ship quarantined

A Dream World cruise ship docks at Kai Tak Cruise Terminal in Kowloon Bya, Hong Kong, on Feb. 7. Authorities are keeping 3,600 passengers and crew members under quarantine due to concerns they were inadvertently exposed to the coronavirus by eight passengers from mainland China. 

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Updated:Caption:Photo:Miguel Candela/Anadolu Agency via Getty Images
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Wuhan on lockdown

A resident rides a motorbike across an empty track on Feb. 7 in Wuhan, China. The city went into lockdown due to the spread of the novel coronavirus.

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Updated:Caption:Photo:Getty Images
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Turks evacuate China

A Turkish Armed Forces cargo plane lands at the Wuhan airport on Feb. 1 in China to evacuate citizens of Turkey and other nearby countries from the heart of the deadly coronavirus outbreak. 

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Updated:Caption:Photo:Ali Murat Alhas/Anadolu Agency via Getty Images
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Warning sign in London

People walk past a news banner that reads "Killer virus now spreading fast" at London's Bank station on Jan. 31, the same day the US declared the coronavirus a public health emergency. 

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Updated:Caption:Photo:John Keeble/Getty Images
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WHO declares emergency

Tedros Adhanom Ghebreyesus, the World Health Organization's director-general, speaks during a press conference in Geneva on Jan.30. The same day, the UN health agency declared an international emergency over the coronavirus, a rarely used designation meant to help with improved international coordination in tackling the disease.

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Updated:Caption:Photo:Fabrice Coffrini/AFP via Getty Images
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Workers disinfect

Workers from a funeral home disinfect themselves after handling a coronavirus victim in a hospital in Wuhan, China, on Jan. 30. 

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Updated:Caption:Photo:Feature China/Barcroft Media via Getty Images
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Cruise ship grounded

The Costa Smeralda cruise ship is seen docked at the Italian port of Civitavecchia. A passenger showed symptoms of the coronavirus on Jan. 30. Around 6,000 passengers of the ship were quarantined after a Chinese woman fell ill. 

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Updated:Caption:Photo:Baris Seckin/Anadolu Agency via Getty Images
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Isolation ward in India

Nurses work inside an isolation ward in a government-run medical clinic in Hyderabad, India, on Jan. 27. Patients coming from Hong Kong have been requesting medical checks as a preventive measure.

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Updated:Caption:Photo:Noan Seelam/AFP via Getty Images
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Checking for fever

An Indonesian health official checks the temperature of a passenger upon his arrival at the Sultan Iskandar Muda International Airport in Blang Bintang on Jan. 27. By that date, an effective quarantine was in place in China, with all flights in and out of Wuhan grounded and a ban on Chinese tour groups domestically and abroad.

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Updated:Caption:Photo:Chaideer Mahyuddin/AFP via Getty Images
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Market fears

Traders on the floor of the New York Stock Exchange as the week kicked off Jan. 27. US stocks fell sharply in morning trading as fears over the spreading coronavirus continue to unsettle global markets. The Dow Jones Industrial Average fell over 400 points after the opening bell. Markets recovered, but...

A month later, on Feb. 24, the Dow fell more than 1,000 points, for its biggest daily decline since 2018.

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Updated:Caption:Photo:Spencer Platt/Getty Images
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Gloves

As a preventive measure following the coronavirus outbreak, a Hong Kong passenger wears latex gloves while traveling on an underground metro train on Jan. 27.

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Updated:Caption:Photo:Anthony Wallace/AFP
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Building a new hospital in Wuhan, fast

Diggers excavate for a new 1,000-bed hospital in Wuhan, China, on Jan. 25. The goal for the rapidly built temporary hospital: help accommodate a growing number of coronavirus patients. 

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Updated:Caption:Photo:Getty Images
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Caution in Hong Kong

Wary of the coronavirus, people in Hong Kong wear surgical masks in public. On Jan. 25, Hong Kong declared a citywide emergency, its highest warning level, canceling all official Chinese New Year celebrations and extending school breaks for the holiday until Feb. 17.

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Updated:Caption:Photo:Willie Siau/Getty Images
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Keeping trains clean in South Korea

A worker in protective gear in Seoul, South Korea, sprays disinfectant in a train on Jan. 24 amid rising public concerns over the spread of the coronavirus, which medical experts confirmed can be passed from human to human. 

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Updated:Caption:Photo:Arne Dedert/Getty Images
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Canceled flight in Japan

A notice at Japan's Narita airport on Jan. 24 shows a canceled flight to Wuhan, China. Japan is a popular travel destination for Chinese tourists during the Lunar New Year holiday, but on Jan. 25 China said it'd clamp down on travel for some of its citizens heading abroad, including suspending tour groups and temporarily halting the sale of flight and hotel packages.

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Updated:Caption:Photo:Tomohiro Ohsumi/Getty Images
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Working toward a vaccine

Virologist Sandro Halbe looks at cell culture dishes in a lab at the Institute of Virology at the Philipps University of Marburg in Germany on Jan. 24. Virologists at the university are involved in the development of a vaccine to combat the lung pathogen. 

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Updated:Caption:Photo:Getty Images
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The view from Thailand

Women with face masks shop in a Bangkok store decorated for the Lunar New Year on Jan. 24, after four people with the coronavirus were detected in Thailand. 

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Updated:Caption:Photo:Mladen Antonov/AFP via Getty Images
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Symptoms spelled out

In Terminal 4 of London's Heathrow Airport, a public health poster shows the symptoms of coronavirus. 

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Updated:Caption:Photo:Getty Images
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Demanding action in Moscow

An environmental activist pickets in front of the Russian Foreign Ministry headquarters in Moscow on Jan. 24 demanding a thorough screening of passengers arriving from Southeast Asia.

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Updated:Caption:Photo:Dimitar Dilkoff/Getty Images
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Trying to stay safe in Scotland

Tourists in Scotland wear face masks as they visit Edinburgh Castle on Jan. 24. The Scottish government created a daily incident management team to monitor the developing situation.

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Updated:Caption:Photo:Jeff J. Mitchell/Getty Images
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At the ready in Munich

This photo was taken Jan. 24 in the meeting room of the infectious diseases task force at the Munich Airport. The task force fights illnesses like SARS, swine flu, measles and chickenpox.

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Updated:Caption:Photo:Sven Hoppe/Getty Images
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Making more masks

Workers step up production of protective masks in Handan, China, on Jan. 22. Masks and other medical supplies quickly went out of stock in some places.

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Updated:Caption:Photo:Getty Images
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