The bubonic plague was a painful disease, with black buboes, or swellings, in the groin and armpits, which lasted up to a week. There was some chance of surviving if the buboes burst.
As of 2015, full retirement age is 67 if you were born after 1960. The amount you receive doesn't change because disability benefits were calculated based on what you would receive at retirement age. However, you may see an increase if Social Security provides a cost of living increase.
Social Security eligibility depends on your birth year. Reduced benefits are available at age 62. The longer you wait to begin collecting, the higher your payment will be up to age 70. Your family members may be able to receive benefits based on your record.