All other polonium isotopes are short-lived except polonium-210 (half-life about 138 days), which is the most commonly used isotope. It is prepared by bombarding bismuth with neutrons in a nuclear reactor.olonium has 34 isotopes, more than any other element. All of these isotopes are radioactive. The most stable, polonium-209, has a half-life of about 103 years. Polonium-208 (half-life about 3 years) is the only other polonium isotope with a half-life over one year.
Ashkenazi Jewish genetic diseases are a group of rare disorders that occur more often in people of Eastern European (Ashkenazi) Jewish heritage than in the general population.
Tay-Sachs disease and resistance to tuberculosis. Tay-Sachs is a rare genetic disease that results in an abnormal accumulation of neuronal lipids caused by a defective lysosomal enzyme, Î±-hexosaminidase. Alleles for this disease are more prevalent in certain populations, the most well-known being the Ashkenazi Jews.t is of note that a particular genetic disorder leads to infectious disease hypersusceptibility, and this relationship has provided the basis for a preventative. Specifically, the relationship between hemosiderosis and typhoid fever has led to the development of a vaccine that intervenes in this relationship.