Limited Observations on the Antistreptolysin Titer in Relation to Latitude

Abstract

Summary From the data presented in this paper it is seen that the median antistreptolysin value is lower in latitudes south of 35° than in latitudes north of 40°. This method of study is suitable for detecting an environment in which the rheumatic subject may expect minimal exposure to hemolytic streptococcus infection of the respiratory tract.