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.
Series EE Savings Bonds issued May 1, 1995 through April 30, 1997, earn interest based on market yields for Treasury securities. Each May 1 and November 1, Treasury announces two Savings Bond rates. The Short-Term Rate is applied to bonds for the first five years they are held. The Long-Term Rate is applied to bonds from five years through 17 years. Bonds will continue to earn interest from 17 years through 30 years at the rates then in effect.