Key developments since the novel coronavirus was announced three months ago, setting out on a global rampage which has left tens of thousands of people dead.
On 8 January 2020, the World Health Organisation (WHO) says a new coronavirus could be behind a pneumonia epidemic documented in December in the Chinese city of Wuhan.
China announces its first death in Wuhan on 11 January.
Through January, cases emerge outside China.
- Epicentre quarantined
On 24 January, the first cases in Europe are recorded, in France.
Hubei province follows Wuhan in being placed in quarantine on 25 January.
- International emergency
On 28 January, Germany and Japan announce the first two confirmed instances of human-to-human transmission of Covid-19 outside China.
Nations rush to evacuate their citizens from China.
On 30 January, the WHO declares a "public health emergency of international concern", without recommending limiting travel and trade with China.
- First deaths outside China, Asia
On 2 February, the Philippines reports the first death outside China, a man from Wuhan.
On 7 February, the WHO warns that the world is running out of masks and other protective equipment.
A week later, France reports the first death confirmed outside Asia, a Chinese tourist.
On 19 February, as the toll tops 2 000, the WHO calls for "proportionate" actions to Covid-19's international spread.
- Serial cancellations
Major global firms express concerns about the sudden impact on their activities and bottom lines.
Trade shows, sporting competitions, arts events and festivities are cancelled. Flights to China are suspended.
- Most cases outside China
The number of cases spirals in Italy, South Korea and Iran.
On 25 February, the WHO says there is a risk of a pandemic. The next day the number of new cases in the rest of the world surpasses that of China.
- Italy lockdown
The OECD lowers its global growth forecast for 2020.
By 6 March, more than 100 000 cases have been recorded around the world.
On 8 March, northern Italy is locked down, quickly followed by the rest of the country.
The next day a crash in oil prices causes global stock markets to fall sharply.
On 11 March, the WHO says Covid-19 is a pandemic.
US borders gradually close to around 30 countries.
Governments and central banks roll out massive economic support measures.
- Europe epicentre
On 13 March, the WHO says Europe is the pandemic's new epicentre.
Spain on 14 March and France on 17 March confine their populations.
Other European countries advise people to stay home and limit contact.
- Planes grounded, borders closed
Airlines slash flights. Many countries shut their borders.
By 18 March, more than 200 000 cases have been registered.
- Italy hardest hit
On 19 March, Italy becomes the country with the highest death toll.
A long list of countries and territories announce confinement measures.
The International Monetary Fund (IMF) warns against a worse recession than the one that followed the 2008 world financial crisis.
- Billions confined
Japan's 2020 Olympics are postponed on 24 March.
As the number of US cases surges, the WHO says the US could overtake Europe as the coronavirus epicentre.
A day later, the UN warns the pandemic "is threatening the whole of humanity".
The US Senate approves a $2 trillion economic stimulus package.
More than three billion people are told to stay home around the world, against a billion two days earlier.
- Wuhan out of isolation
On 28 March, as China's Wuhan starts to emerge from lockdown, Italy passes the 10 000 death mark, joined by Spain five days later.
On 2 April, the symbolic bar of one million officially declared cases is passed, while one half of humanity is confined.
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