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.
How long can yogurt stay unrefrigerated? Sour cream should always be stored in the refrigerator to help prevent spoilage. Typically, unopened sour cream can last up to two weeks when it is properly stored. Opened sour cream can last up to 10 days in the refrigerator when it is stored in an airtight container. Sour cream that has a bitter flavor, too much water or spots of mold should be discarded.