When he first saw a map of malaria's range, Mann says it was as if the scales had fallen from my eyes. That range extends almost precisely to the Mason-Dixon Line, along which the American Civil War broke out in 1861, between the slave-holding states of the South and the Union soldiers of the North.
Opened yogurt will typically stay at peak quality for 5 to 7 days after opening, but will generally remain safe to consume for at least 1 to 2 weeks after the sell by date on the package, provided it has been properly stored- discard entire package if any sign of mold appears.
Different varieties of yogurts stay fresh for varying amounts of time. For example, an unopened drinkable yogurt or yogurt with fruit has a shorter lifespan of seven to ten days. Greek yogurt and reduced fat yogurt are good for one to two weeks past the expiration date. If there is an excessive amount of liquid at the top of the yogurt or a curdling texture near the bottom of the yogurt, the yogurt is spoiling and should be thrown away.