Studies on Epidemic Nephritis

Epidemiological Study on Beta-hemolytic Streptococcal Infections in Yamagata Prefecture

“…One year survey made recently on the correlation of the clinic-,l pictures with the isolated streptococcus strains revealed that the clinical manifestations of the children under 10 years old, att older school age, and of the adults were in the form of acute pharyngitis, catarrhal tonsillitis and parulent tonsillitis, respectively. These were infections due to types 12 In this paper, an attempt was made firstly to clarify the differences of groups and types of strains which had been isolated during 1955 to 1969 from the residents in various areas of Yamagata Prefecture of 1,300,000 population. Secondly, the efforts to correlate the causative agents with the patient's symptoms were made in a particular year.…”