Coronavirus map: The COVID-19 virus is spreading across the world. Here's where cases have been confirmed.

More than 84,000 people have been sickened by a coronavirus, mostly in China. This map is updated daily.

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By Jiachuan Wu and Nigel Chiwaya

Health officials worldwide are working to contain cases of COVID-19, the disease caused by the new coronavirus that originated in China.

This map will be updated when more information is available. As of Feb. 28, COVID-19 cases were confirmed in China and more than 45 other countries.

More than 84,000 people have been sickened and at least 2,912 have died of the coronavirus since the start of January, according to NBC News reports, the World Health Organization (WHO) and figures from state government leaders and health officials.

The tally of countries with at least one confirmed case is long: China, Thailand, Taiwan, Japan, Singapore, South Korea, Vietnam, the United States, France, Australia, Malaysia, Nepal, Germany, Sri Lanka, Cambodia, Canada, United Arab Emirates, Finland, India, the Philippines, the United Kingdom, Italy, Russia, Sweden, Spain, Belgium, Egypt, Iran, Israel, Lebanon, Oman, Kuwait, Iraq, Austria, Bahrain, Switzerland, Croatia, Afghanistan, Pakistan, Brazil, Denmark, Estonia, Romania, North Macedonia, Nigeria, Netherlands and New Zealand.

While most of the cases have occurred in mainland China, officials had feared that the busy travel season in advance of the Lunar New Year would accelerate the virus’ spread. The chair of the WHO emergency committee said on January 23 that it was "too early" to call the coronavirus an emergency, and on January 30 on the organization declared the coronavirus outbreak a global public health emergency.

The Chinese government, which is looking to avoid a repeat of the 2003 SARS outbreak, has warned officials not to cover up the spread of the virus. The South China Morning Post reported that Beijing said anyone who withheld information would be “the sinner of a millennium to the party and the people” and would be “nailed on the pillar of shame for eternity.”

See NBC News’ coverage of the coronavirus, and read the coronavirus live blog.

Joe Murphy contributed.