Making the world better, one answer at a time. a superbug is a micro-organism that is resistant to most anti-biotics. the superbugs in recent history are imune to all anti-biotics,except one.
Both electronic and paper versions of Series I savings bonds are purchased at face value and earn interest until they are redeemed or reach maturity. You must hold Series I bonds for at least 12 months before redeeming them. Series I savings bonds will continue to earn interest for up to 30 years. They will cease paying interest once they have matured.
EE BONDS ISSUED SINCE MAY 1995: Since interest rates can change every six months, it is virtually impossible to predict when your bond will reach itâs original maturity (face value). A brief guideline is if the bond was earning an average rate of 5% per year, it would take approximately 14 1/2 years to reach face value. A bond earning interest at a rate of 6%, compounded semi-annually would take no more than 12 years to reach face value. good news! effective may 1, 2004, bonds are guaranteed to be worth at least it's face value at 20 years.