Covid-19 is continuing to spread around the world, with more than 245 million confirmed cases and about five million deaths across almost 200 countries.
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The 100 millionth Covid case was recorded at the end of January - about a year after the first officially diagnosed case of the virus.
The true extent of the first outbreak in 2020 is unclear because testing was not then widely available.
Deaths are rising in some areas, however official figures may not fully reflect the true number in many countries.
Data on excess deaths, a measure of how many more people are dying than would be expected based on the previous few years, may give a better indication of the actual numbers in many cases.
Who has vaccinated the most?
Of the 197 countries and territories administering vaccines and publishing rollout data, 67 are high-income nations, 103 are middle-income and 27 low-income.
The map below, using figures collated by Our World in Data - a collaboration between Oxford University and an educational charity - shows the total number of doses given per 100 people, mostly first doses.
Overall, China and India have administered the highest number of doses, with around 2.3 billion and one billion respectively. The US ranks third, with more than 420 million.
But when breaking the figures down by doses per 100 people in countries with a population of at least one million, Cuba, the United Arab Emirates and Chile top the list.