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.
What EE bonds earn. The current interest rate on Series EE bonds is 0.10 percent, through April 2015. New interest rates are announced twice a year and take effect May 1 and November 1. EE bonds issued from May 2005 onward will earn the new rate.