Dec. 31, 2019: China alerts the World Health Organization of 27 cases of “viral pneumonia” in the central city of Wuhan. Authorities shut down a wet market in Wuhan the next day, after discovering some patients were vendors or dealers.Jan. 11, 2020: A 61-year-old man is reported as the first death. Preliminary lab tests cited by Chinese state media point to a new type of coronavirus.Jan. 13: A Chinese woman is quarantined in Thailand, the first detection of the virus outside China.Jan. 15: Japan confirms its first case.Jan. 20: South Korea confirms its first case.Jan. 22: The WHO convenes an emergency meeting with health authorities around the world. Director-general Tedros Adhanom Ghebreyesus says the new coronavirus does not yet constitute an international emergency.Jan. 23: China issues a lockdown for millions of people in Wuhan and Hubei as the death toll rises to 18.Jan. 24: The first cases in Europe are reported in France.Jan. 25: China bans wildlife trade after the virus was traced to a Wuhan animal market. The Lunar New Year holiday is extended for workers and schools. Hong Kong leader Carrie Lam announces measures to limit links with China.Jan. 27: The United States warns against travel to China, a day after five people who had been in Wuhan become the first confirmed cases in America.Jan. 30: The WHO declares the outbreak a public health emergency of international concern.Feb. 1: The United States, Singapore, Russia and Australia ban foreign travelers who were recently in China.Feb. 2: A 44-year-old man dies in the Philippines, the first death outside China.Feb. 3: Investors erase $393 billion from China’s benchmark stock index, selling the yuan and dumping commodities on the first day of trade after the Lunar New Year break.Feb. 4: Hong Kong reports its first death. Macau shutters casinos. American Airlines Group and United Airlines Holdings Inc suspend flights to Hong Kong.Feb. 5: About 3,700 passengers are quarantined aboard the Diamond Princess, a Carnival Corp cruise liner, off the coast of Japan after 10 people test positive. More than 700 passengers eventually test positive and 14 die. The ship is quarantined for nearly a month.Feb. 7: Li Wenliang, a Chinese ophthalmologist who had been reprimanded for issuing an early warning about the Wuhan outbreak, dies, triggering wide public mourning and rare expressions of anger against the government.Feb. 7: Hong Kong supermarket shelves are stripped bare as residents hoard toilet paper and other supplies.Feb. 11: The Chinese government’s senior medical adviser tells Reuters the outbreak may be over by April.Feb. 12: An Iranian woman dies of a suspected coronavirus infection, according to the state daily newspaper IRAN, the first in the Islamic Republic.