| blastomycosis in washington parish, louisiana, 1976-1985. | for the period 1976-1985, the authors attempted to identify all cases of blastomycosis in louisiana and studied in detail one county (washington parish) suspected by local physicians of having an unusually high incidence of the disease. the mean annual incidence rates for louisiana and for washington parish were 0.23 and 6.8 cases per 100,000 population, respectively. to the authors' knowledge, the rate for washington parish is the highest annual incidence rate documented for a population in a n ... | 1989 | 2787106 |