That means they take a drop of blood and they look at it under a microscope, and they can confirm that this was an actual case of malaria.

VOA: standard.2010.06.17

I've got the Federal Funds Rate--it's the shortest interest rate, an overnight rate--it was at 4% at that time and then there was a sharp drop.

这是联邦基金利率,是最短期的利率,当时的隔夜拆借利率是4%,接下来利率急速下跌

耶鲁公开课 - 金融市场课程节选