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.
They will continue earning interest until they reach final maturity -- 30 years from the issue date for all EE bonds. --What's the tax implication of cashing a savings bond? Unless you elected to pay taxes on the interest on an annual basis, which few people do, you must pay federal income tax on the bonds in the year they mature -- even if you don't cash them in.