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.
The annual interest rate for EE Bonds issued from November 1, 2016 through April 30, 2017, is 0.10%. EE Bonds issued in May 2005 and after earn interest for up to 30 years. They earn a fixed rate of interest. For the first 20 years, EE bonds earn the same fixed rate that was set when the bond was issued. We may change the rate or the way an EE Bond earns interest for the last 10 years of the bond's 30-year life.