December 31, 2019: China informs the World Health Organization (WHO) of an unknown virus that has caused 41 cases of pneumonia in the multi-million city of Wuhan, Hubei Province. The first affected people must have fallen ill in early December.
January 1, 2020: A fish and meat market, where wildlife is also sold, will be closed in Wuhan as several of the cases have been linked to it.
January 7: WHO announces that the new virus has been identified as a previously unknown virus in the coronavirus family.
January 11: China reports the first death due to the virus, a 61-year-old man who traded in the Wuhan market.
January 13: WHO reports on the first case of infection outside China, a woman who arrived in Thailand from Wuhan.
January 23: Wuhan is quarantined and train and flight connections are withdrawn. The Chinese New Year celebration is set all over the country.
January 24: France announces that two people have tested positive for the corona virus, the first cases in Europe.
January 26: The Swedish Ministry of Foreign Affairs advises against travel to areas in China affected by the corona virus.
January 30: WHO classifies the outbreak as an international health emergency.
January 31: Sweden gets its first case of infection. A 20-year-old woman who visited Wuhan is isolated at Ryhov County Hospital in Jönköping.
February 1: The Swedish government classifies the corona virus as a dangerous disease.
February 6: The death toll in China passes 500.
February 7: Wuhan physician Li Wenliang, who early warned of a new type of virus but was accused of "rumor spread" by the authorities, dies in the infection he himself was the first to identify.
February 11: The international agency ICTV, which has the task of naming new infections, renames the virus to sars-cov-2. WHO announces that the disease that the virus is causing is called covid-19.
February 14: The first case of coronavirus is confirmed in Africa.
February 15: France announces that a Chinese tourist has died of the corona virus in the country, the first death outside Asia.
February 22: Italy reports its first death in covid-19, a 78-year-old man.
February 27: For the first time, more new cases of infection are reported than in China - 411 in China compared with 427 in 37 other countries - WHO states.
February 28: WHO upgrades the risk of global spread to "very high".
February 29: The United States reports its first death.
March 7: Pope Francis switches to web services.
March 8: The first death in South America, a man in Argentina, is reported.
March 11: WHO states that the corona eruption is a pandemic. On the same day, the first Swede, a person in his upper 70s, dies in covid-19.
March 12: United States introduces entry ban for Schengen travelers and New York metropolis for emergency permit. In Italy, the deaths exceed 1,000 people.
March 13: Europe is now the epicenter of the corona eruption, WHO announces. Denmark is closing its borders to the outside world.
March 14: The Foreign Ministry advises against all unnecessary trips abroad.
March 16: The number of confirmed cases outside China, 88,000, for the first time exceeds the number of infected people in China, 80,000. The New York Stock Exchange falls by 12.9 percent, the worst race since "Black Monday" in 1987.
March 17: EU countries agree to stop unnecessary entry into the EU.
March 19: With just over 3,400 deaths, Italy passes China as the country where covid-19 harvested the most victims. The number of deaths globally passes 10,000.
March 23: More than one billion people in more than 50 countries are urged to stay at home through recommendations or mandatory injunctions.
March 27: UK Prime Minister Boris Johnson confirmed confirmed infected.
March 28: Over 10,000 have lost their lives in Italy.
March 30: Covid-19 has harvested 35,000 deaths globally and the infection has spread to 183 countries, WHO reports.
April 2: The confirmed cases of infection in the world exceed one million, doubling in a week. Globally, the number of deaths exceeds 50,000.
April 6: Over 50,000 people in Europe have died in covid-19. In the US, the death toll exceeds 10,000.
April 7: Worldwide working hours decreased by 6.7 percent during the first quarter of 2020, reports the UN agency ILO. This corresponds to 230 million full-time jobs that were never performed.
April 9: The Corona crisis could force 6-8 percent of the world's population, around 500 million people, into poverty, the Oxfam relief organization is alerting.
April 10: Global covid-19 deaths exceed 100,000, according to Johns Hopkins University.