Before we finally bid goodbye to 2015, here’s a look back at the top six business stories that caught the attention of our readers—yes, you—in the past 12 months.

Biologist loses measles virus wager

Measles made the headlines back in March thanks to a resurgence in outbreaks that observers blamed on the discredited anti-vaccination movement in many western countries. Stefan Lanka, a biologist and vaccination skeptic, believes measles is brought on by “traumatic separations,” and even went as far as announcing on his website that he will pay €100,000 to anyone who could prove the disease was caused by virus.

Of course someone took up that challenge. German doctor David Barden gathered a weighty collection of scientific evidence of measles’ viral origin and presented them to Lanka with a request for €100,000 payment, but Lanka rejected Barden’s evidence.