The current Ebola virus outbreak has claimed more than 4,000 lives in West Africa, as well as one in the US where the victim had been visiting Liberia, the country with the highest death toll so far.

Our interactive graphic tracks the outbreak’s spread since the World Health Organisation first issued a global alert in March 2014

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By John Burn-Murdoch and Gavin Jackson

In the latest instalment of The Baseline, our weekly feature on sports statistics, we looked at Serena Williams’ dominance of women’s tennis over the last decade.

Williams has won 17 of the 43 grand slam tournaments she has entered since the 2002 French Open, and the reasons for her success can be explained with a look at performance data for the top players of the modern era Read more

By John Burn-Murdoch and Gavin Jackson

In the fourth instalment of The Baseline, our weekly feature on sports statistics, we looked at how overtaking in Formula One has changed over the years.

For decades it appeared the aggressive passing move was a dying art, but everything changed in 2011. Read on to find out why, and what it means for this year’s title tussle between Lewis Hamilton and Nico Rosberg. Read more

Our new unemployment tracker shows the latest jobs data across the European Union, including top-line figures for each country’s constituent regions.

You can also download the latest data using the link beneath the graphic. Read more

With the 40th Ryder Cup about to get underway at Gleneagles, we wanted to know if we’ve been misled by one of golf’s greatest myths.

The saying goes that you “drive for show, and putt for dough” – in other words an impressive shot off the tee may win you a few whoops from the fans, but it’s your putting game that will win or lose tournaments.

We used data from the PGA Tour to analyse the relative impacts of the long and short game on players’ success. Read more

The One North report proposes to upgrade infrastructure in the north of England, focusing on links between five cities: Leeds, Liverpool, Manchester, Newcastle and Sheffield. One way of showing how well linked the five cities are is to look at commuter flows. This interactive graphic shows total flows between the five cities, based on data from the 2011 UK census.  Read more