Workers’ compensation is one of the few State-administered income-maintenance programs operating throughout the United States. The national “system” that provides medical care and income-maintenance protection to workers disabled from workrelated injuries or illnesses actually consists of 50 independent State operations and several special Federal programs. The Social Security Administration (S...

The following article, first published as Actuarial Study No. 99, describes the population projections that underlie the long-range cost estimates for the Old-Age, Survivors, and Disability Insurance (OASDI) program, which are included in the 1987 Report of the OASDI Board of Trustees. The projections start from a recent estimate of the population in the Social Security Area by age, sex, and ma...

Herpes simplex encephalitis (HSE) is a serious disease with 10-20% mortality and high rate of neuropsychiatric sequelae. This study is a long-term, nationwide study in a single country, Iceland. Clinical data were obtained from patient records and from DNA PCR and antibody assays of CSF. Diagnosis of HSE was classified as definite, possible or rejected based on symptoms, as well as virological,...