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.
Investing for Beginners. Have you ever wondered why different Series EE savings bonds mature at different dates? For example, the EE bonds issued in 1981 and 1982 took only eight years to reach full face value, yet the same EE bonds issued in 2003 took twenty years to reach face value.