Transmissible virus dementia. I. An unusual space and time clustering of Creutzfeldt-Jakob disease and of other organic presenile dementia cases.
A peculiar grouping of Creutzfeldt-Jacob disease (CJD) and of other organic presenile dementia (OPD) cases in a small, prevalently rural area in Czechoslovakia to the east of 19 degrees 35' E and to the north of 48 degrees 15' N was studied. Between August, 1972 and November, 1976, three histologically proven CJD cases, bearing no sporadic of familial patterns, were observed. The distance between their dwellings was 13--17 km. In addition, seven cases of OPD were detected in the same area, two of them being suspected as possible CJD according to clinical evidence.
Transmissible virus dementia. I. An unusual space and time clustering of Creutzfeldt-Jakob disease and of other organic presenile dementia cases. A peculiar grouping of Creutzfeldt-Jacob disease (CJD) and of other organic presenile dementia (OPD) cases in a small, prevalently rural area in Czechoslovakia to the east of 19 degrees 35' E and to the north of 48 degrees 15' N was studied. Between August, 1972 and November, 1976, three histologically proven CJD cases, bearing no sporadic of familial patterns, were observed. The distance between their dwellings was 13--17 km. In addition, seven cases of OPD were detected in the same area, two of them being suspected as possible CJD according to clinical evidence.