Neuraminidase inhibitors are effective against all variants that have caused disease in humans, including the virus of the 1918 pandemic (Tumpey 2005). In human H5N1 influenza, treatment with an oral neuraminidase inhibitor, oseltamivir, seems to be effective in some cases, but may fail in others.
A: An equity-indexed annuity is an alternative investment to a traditional fixed rate or variable rate annuity, and it may be appealing to moderately conservative investors. Equity-indexed annuities are distinguished by the interest yield return being partially based on an equities index, such as the S&P 500 index.
An annuity is a series of payments made at equal intervals. Examples of annuities are regular deposits to a savings account, monthly home mortgage payments, monthly insurance payments and pension payments. Annuities can be classified by the frequency of payment dates. The payments may be made weekly, monthly, quarterly, yearly, or at any other regular interval of time. An annuity which provides for payments for the remainder of a person's lifetime is a life annuity.